diff --git a/app/src/main/java/be/ugent/sel/studeez/StudeezApp.kt b/app/src/main/java/be/ugent/sel/studeez/StudeezApp.kt
index 673058e..91cc208 100644
--- a/app/src/main/java/be/ugent/sel/studeez/StudeezApp.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/StudeezApp.kt
@@ -2,18 +2,8 @@ package be.ugent.sel.studeez
 
 import android.content.res.Resources
 import androidx.compose.foundation.layout.padding
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.Scaffold
-import androidx.compose.material.ScaffoldState
-import androidx.compose.material.Snackbar
-import androidx.compose.material.SnackbarHost
-import androidx.compose.material.Surface
-import androidx.compose.material.rememberScaffoldState
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.ReadOnlyComposable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.material.*
+import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.platform.LocalContext
@@ -38,6 +28,8 @@ import be.ugent.sel.studeez.screens.profile.EditProfileRoute
 import be.ugent.sel.studeez.screens.profile.ProfileRoute
 import be.ugent.sel.studeez.screens.session.SessionRoute
 import be.ugent.sel.studeez.screens.session_recap.SessionRecapRoute
+import be.ugent.sel.studeez.screens.sessions.SessionsRoute
+import be.ugent.sel.studeez.screens.settings.SettingsRoute
 import be.ugent.sel.studeez.screens.sign_up.SignUpRoute
 import be.ugent.sel.studeez.screens.splash.SplashRoute
 import be.ugent.sel.studeez.screens.timer_overview.TimerOverviewRoute
@@ -92,7 +84,7 @@ fun resources(): Resources {
 @Composable
 fun StudeezNavGraph(
     appState: StudeezAppstate,
-    modifier: Modifier,
+    modifier: Modifier = Modifier,
 ) {
     val drawerViewModel: DrawerViewModel = hiltViewModel()
     val navBarViewModel: NavigationBarViewModel = hiltViewModel()
@@ -114,8 +106,52 @@ fun StudeezNavGraph(
         startDestination = StudeezDestinations.SPLASH_SCREEN,
         modifier = modifier,
     ) {
+        // NavBar
+        composable(StudeezDestinations.HOME_SCREEN) {
+            HomeRoute(
+                open,
+                viewModel = hiltViewModel(),
+                drawerActions = drawerActions,
+                navigationBarActions = navigationBarActions
+            )
+        }
 
+        composable(StudeezDestinations.TASKS_SCREEN) {
+            // TODO
+        }
 
+        composable(StudeezDestinations.SESSIONS_SCREEN) {
+            SessionsRoute(
+                drawerActions = drawerActions,
+                navigationBarActions = navigationBarActions
+            )
+        }
+
+        composable(StudeezDestinations.PROFILE_SCREEN) {
+            ProfileRoute(
+                open,
+                viewModel = hiltViewModel(),
+                drawerActions = drawerActions,
+                navigationBarActions = navigationBarActions
+            )
+        }
+
+        // Drawer
+        composable(StudeezDestinations.TIMER_SCREEN) {
+            TimerOverviewRoute(
+                viewModel = hiltViewModel(),
+                drawerActions = drawerActions,
+                open = open
+            )
+        }
+
+        composable(StudeezDestinations.SETTINGS_SCREEN) {
+            SettingsRoute(
+                drawerActions = drawerActions
+            )
+        }
+
+        // Login flow
         composable(StudeezDestinations.SPLASH_SCREEN) {
             SplashRoute(
                 openAndPopUp,
@@ -137,32 +173,12 @@ fun StudeezNavGraph(
             )
         }
 
-        composable(StudeezDestinations.HOME_SCREEN) {
-            HomeRoute(
+        // Studying flow
+        composable(StudeezDestinations.TIMER_SELECTION_SCREEN) {
+            TimerSelectionRoute(
                 open,
+                goBack,
                 viewModel = hiltViewModel(),
-                drawerActions = drawerActions,
-                navigationBarActions = navigationBarActions,
-            )
-        }
-
-        // TODO Tasks screen
-        // TODO Sessions screen
-
-        composable(StudeezDestinations.PROFILE_SCREEN) {
-            ProfileRoute(
-                open,
-                viewModel = hiltViewModel(),
-                drawerActions = drawerActions,
-                navigationBarActions = navigationBarActions,
-            )
-        }
-
-        composable(StudeezDestinations.TIMER_OVERVIEW_SCREEN) {
-            TimerOverviewRoute(
-                viewModel = hiltViewModel(),
-                drawerActions = drawerActions,
-                open = open
             )
         }
 
@@ -174,26 +190,6 @@ fun StudeezNavGraph(
             )
         }
 
-        // TODO Timers screen
-        // TODO Settings screen
-
-        // Edit screens
-        composable(StudeezDestinations.EDIT_PROFILE_SCREEN) {
-            EditProfileRoute(
-                goBack,
-                openAndPopUp,
-                viewModel = hiltViewModel(),
-            )
-        }
-
-        composable(StudeezDestinations.TIMER_SELECTION_SCREEN) {
-            TimerSelectionRoute(
-                open,
-                goBack,
-                viewModel = hiltViewModel(),
-            )
-        }
-
         composable(StudeezDestinations.SESSION_RECAP) {
             SessionRecapRoute(
                 openAndPopUp = openAndPopUp,
@@ -208,5 +204,27 @@ fun StudeezNavGraph(
                 viewModel = hiltViewModel()
             )
         }
+
+        // Friends flow
+        composable(StudeezDestinations.SEARCH_FRIENDS_SCREEN) {
+            // TODO
+        }
+
+        // Create & edit screens
+        composable(StudeezDestinations.CREATE_TASK_SCREEN) {
+            // TODO
+        }
+
+        composable(StudeezDestinations.CREATE_SESSION_SCREEN) {
+            // TODO
+        }
+
+        composable(StudeezDestinations.EDIT_PROFILE_SCREEN) {
+            EditProfileRoute(
+                goBack,
+                openAndPopUp,
+                viewModel = hiltViewModel(),
+            )
+        }
     }
 }
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/ButtonComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/ButtonComposable.kt
index 86464f9..ae675e5 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/ButtonComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/ButtonComposable.kt
@@ -2,7 +2,6 @@ package be.ugent.sel.studeez.common.composable
 
 import androidx.annotation.StringRes
 import androidx.compose.foundation.BorderStroke
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
@@ -13,6 +12,7 @@ import androidx.compose.ui.unit.sp
 import be.ugent.sel.studeez.R
 import be.ugent.sel.studeez.common.ext.basicButton
 import be.ugent.sel.studeez.common.ext.card
+import be.ugent.sel.studeez.common.ext.defaultButtonShape
 
 @Composable
 fun BasicTextButton(@StringRes text: Int, modifier: Modifier, action: () -> Unit) {
@@ -37,7 +37,7 @@ fun BasicButton(
     Button(
         onClick = onClick,
         modifier = modifier,
-        shape = RoundedCornerShape(20.dp),
+        shape = defaultButtonShape(),
         colors = colors,
         border = border,
     ) {
@@ -54,6 +54,25 @@ fun BasicButtonPreview() {
     BasicButton(text = R.string.add_timer, modifier = Modifier.basicButton()) {}
 }
 
+@Composable
+fun NotInternationalisedButton(
+    text: String,
+    modifier: Modifier = Modifier,
+    colors: ButtonColors = ButtonDefaults.buttonColors(),
+    border: BorderStroke? = null,
+    onClick: () -> Unit
+) {
+    Button(
+        onClick = onClick,
+        modifier = modifier,
+        shape = defaultButtonShape(),
+        colors = colors,
+        border = border
+    ) {
+        Text(text = text)
+    }
+}
+
 @Composable
 fun StealthButton(
     @StringRes text: Int,
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/FloatingActionButtonComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/FloatingActionButtonComposable.kt
index 15005fa..bc40ead 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/FloatingActionButtonComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/FloatingActionButtonComposable.kt
@@ -1,7 +1,9 @@
 package be.ugent.sel.studeez.common.composable
 
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.updateTransition
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.*
 import androidx.compose.material.FloatingActionButton
 import androidx.compose.material.Icon
 import androidx.compose.material.IconButton
@@ -11,52 +13,134 @@ import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Check
 import androidx.compose.material.icons.filled.DateRange
 import androidx.compose.material.icons.filled.Person
-import androidx.compose.runtime.Composable
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import be.ugent.sel.studeez.resources
 import be.ugent.sel.studeez.ui.theme.StudeezTheme
+import be.ugent.sel.studeez.R.string as AppText
+
+const val TRANSITION = "transition"
+val HEIGHT_DIFFERENCE = 30.dp
+
+data class AddButtonActions(
+    val onTaskClick: () -> Unit,
+    val onFriendClick: () -> Unit,
+    val onSessionClick: () -> Unit
+)
 
 @Composable
-fun CollapsedAddButton() {
-    FloatingActionButton(
-        onClick = { /* TODO popup add options */ }
+fun AddButton(
+    addButtonActions: AddButtonActions
+) {
+    var isExpanded by remember { mutableStateOf(false) }
+
+    // Rotate the button when expanded, normal when collapsed.
+    val transition = updateTransition(targetState = isExpanded, label = TRANSITION)
+    val rotate by transition.animateFloat(label = TRANSITION) { expanded -> if (expanded) 315f else 0f }
+
+    Column(
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Top
     ) {
-        Icon(imageVector = Icons.Default.Add, contentDescription = "fab")
+        Box {
+            // Show minis when expanded.
+            if (isExpanded) {
+                ExpandedAddButton(
+                    addButtonActions = addButtonActions
+                )
+            }
+        }
+
+        // The base add button
+        FloatingActionButton(
+            onClick = {
+                // Toggle expanded/collapsed.
+                isExpanded = !isExpanded
+            },
+            modifier = Modifier.padding(bottom = if (isExpanded) 78.dp else 0.dp)
+        ) {
+            Icon(
+                imageVector = Icons.Default.Add,
+                contentDescription = "fab",
+                modifier = Modifier.rotate(rotate) // The rotation
+            )
+        }
     }
 }
 
 @Composable
-fun ExpandedAddButton() {
-    Row() {
-        IconButton(onClick = { /* TODO Go to next step */ }) {
-            Column (horizontalAlignment = Alignment.CenterHorizontally) {
-                Icon(imageVector = Icons.Default.Check, contentDescription = "Task")
-                Text(text = "Task")
-            }
-        }
-        IconButton(onClick = { /* TODO Go to next step */ }) {
-            Column (horizontalAlignment = Alignment.CenterHorizontally) {
-                Icon(imageVector = Icons.Default.Person, contentDescription = "Friend")
-                Text(text = "Friend")
-            }
-        }
-        IconButton(onClick = { /* TODO Go to next step */ }) {
-            Column (horizontalAlignment = Alignment.CenterHorizontally) {
-                Icon(imageVector = Icons.Default.DateRange, contentDescription = "Session")
-                Text(text = "Session")
-            }
-        }
+fun ExpandedAddButton(
+    addButtonActions: AddButtonActions
+) {
+    Row {
+        ExpandedEntry(
+            name = AppText.task,
+            imageVector = Icons.Default.Check,
+            onClick = addButtonActions.onTaskClick,
+            modifier = Modifier.padding(36.dp, HEIGHT_DIFFERENCE, 36.dp, 0.dp)
+        )
+
+        ExpandedEntry(
+            name = AppText.friend,
+            imageVector = Icons.Default.Person,
+            onClick = addButtonActions.onFriendClick
+        )
+
+        ExpandedEntry(
+            name = AppText.session,
+            imageVector = Icons.Default.DateRange,
+            onClick = addButtonActions.onSessionClick,
+            modifier = Modifier.padding(36.dp, HEIGHT_DIFFERENCE, 36.dp, 0.dp)
+        )
     }
 }
 
+@Composable
+fun ExpandedEntry(
+    name: Int,
+    imageVector: ImageVector,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    IconButton(
+        onClick = onClick,
+        modifier = modifier
+    ) {
+        Column(horizontalAlignment = Alignment.CenterHorizontally) {
+            Icon(
+                imageVector = imageVector,
+                contentDescription = resources().getString(name),
+                // TODO Dark overlay
+                //  tint = colors.surface
+            )
+            Text(
+                text = resources().getString(name),
+                // TODO Dark overlay
+                //  color = colors.surface
+            )
+        }
+
+    }
+
+}
+
 @Preview
 @Composable
-fun CollapsedAddButtonPreview() {
-    StudeezTheme { CollapsedAddButton() }
+fun AddButtonPreview() {
+    StudeezTheme { AddButton(
+        addButtonActions = AddButtonActions({}, {}, {})
+    )}
 }
 
 @Preview
 @Composable
 fun ExpandedAddButtonPreview() {
-    StudeezTheme { ExpandedAddButton() }
+    StudeezTheme { ExpandedAddButton (
+        addButtonActions = AddButtonActions({}, {}, {})
+    ) }
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt
index 79dec41..0b3ee6e 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt
@@ -57,7 +57,11 @@ fun PrimaryScreenTemplate(
         bottomBar = { NavigationBar(navigationBarActions) },
         floatingActionButtonPosition = FabPosition.Center,
         isFloatingActionButtonDocked = true,
-        floatingActionButton = { CollapsedAddButton() }
+        floatingActionButton = { AddButton(AddButtonActions(
+            onTaskClick = navigationBarActions.onAddTaskClick,
+            onFriendClick = navigationBarActions.onAddFriendClick,
+            onSessionClick = navigationBarActions.onAddSessionClick
+        )) }
     ) {
         content(it)
     }
@@ -70,7 +74,7 @@ fun PrimaryScreenPreview() {
         PrimaryScreenTemplate(
             "Preview screen",
             DrawerActions({}, {}, {}, {}, {}),
-            NavigationBarActions({ false }, {}, {}, {}, {}),
+            NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {}),
             {
                 IconButton(onClick = { /*TODO*/ }) {
                     Icon(
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/TextFieldComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/TextFieldComposable.kt
index 2c0b450..47dbb0b 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/TextFieldComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/TextFieldComposable.kt
@@ -41,10 +41,12 @@ fun BasicField(
 fun LabelledInputField(
     value: String,
     onNewValue: (String) -> Unit,
-    @StringRes label: Int
+    @StringRes label: Int,
+    singleLine: Boolean = false
 ) {
     OutlinedTextField(
         value = value,
+        singleLine = singleLine,
         onValueChange = onNewValue,
         label = { Text(text = stringResource(id = label)) },
         modifier = Modifier.fieldModifier()
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/TimePickerButtonComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/TimePickerButtonComposable.kt
new file mode 100644
index 0000000..02bd0d7
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/TimePickerButtonComposable.kt
@@ -0,0 +1,48 @@
+package be.ugent.sel.studeez.common.composable
+
+import android.app.TimePickerDialog
+import android.app.TimePickerDialog.OnTimeSetListener
+import android.content.Context
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonColors
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import be.ugent.sel.studeez.data.local.models.timer_functional.HoursMinutesSeconds
+import java.util.*
+
+@Composable
+fun TimePickerButton(
+    hoursMinutesSeconds: HoursMinutesSeconds,
+    modifier: Modifier = Modifier,
+    colors: ButtonColors = ButtonDefaults.buttonColors(),
+    border: BorderStroke? = null,
+    onTimeSetListener: OnTimeSetListener
+) {
+    val context = LocalContext.current
+    Button(
+        onClick = { pickDuration(context, onTimeSetListener) },
+        modifier = modifier,
+        shape = RoundedCornerShape(20.dp),
+        colors = colors,
+        border = border
+    ) {
+        Text(text = hoursMinutesSeconds.toString())
+    }
+}
+
+private fun pickDuration(context: Context, listener: OnTimeSetListener) {
+    val timePickerDialog = TimePickerDialog(
+        context,
+        listener,
+        0,
+        0,
+        true
+    )
+    timePickerDialog.show()
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerComposable.kt
index 47571f5..2d4eab3 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerComposable.kt
@@ -1,5 +1,6 @@
 package be.ugent.sel.studeez.common.composable.drawer
 
+import android.content.Context
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -16,6 +17,7 @@ import androidx.compose.material.icons.outlined.Info
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.vectorResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
@@ -28,7 +30,7 @@ data class DrawerActions(
     val onTimersClick: () -> Unit,
     val onSettingsClick: () -> Unit,
     val onLogoutClick: () -> Unit,
-    val onAboutClick: () -> Unit,
+    val onAboutClick: (Context) -> Unit,
 )
 
 fun getDrawerActions(
@@ -41,7 +43,7 @@ fun getDrawerActions(
         onTimersClick = { drawerViewModel.onTimersClick(open) },
         onSettingsClick = { drawerViewModel.onSettingsClick(open) },
         onLogoutClick = { drawerViewModel.onLogoutClick(openAndPopUp) },
-        onAboutClick = { drawerViewModel.onAboutClick(open) },
+        onAboutClick = { context -> drawerViewModel.onAboutClick(open, context = context) },
     )
 }
 
@@ -79,10 +81,11 @@ fun Drawer(
             )
         }
 
+        val context = LocalContext.current
         DrawerEntry(
             icon = Icons.Outlined.Info,
             text = resources().getString(R.string.about),
-            onClick = drawerActions.onAboutClick,
+            onClick = { drawerActions.onAboutClick(context) },
         )
     }
 }
@@ -96,7 +99,7 @@ fun DrawerEntry(
     Row(
         horizontalArrangement = Arrangement.Center,
         modifier = Modifier
-            .clickable(onClick = { onClick() })
+            .clickable(onClick = onClick)
             .fillMaxWidth()
     ) {
         Box(
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerViewModel.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerViewModel.kt
index d16d930..e55c342 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerViewModel.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/drawer/DrawerViewModel.kt
@@ -1,5 +1,10 @@
 package be.ugent.sel.studeez.common.composable.drawer
 
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
 import be.ugent.sel.studeez.domain.AccountDAO
 import be.ugent.sel.studeez.domain.LogService
 import be.ugent.sel.studeez.navigation.StudeezDestinations
@@ -9,6 +14,8 @@ import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
 
+const val REPO_URL: String = "https://github.ugent.be/SELab1/project2023-groep14/"
+
 @HiltViewModel
 class DrawerViewModel @Inject constructor(
     private val accountDAO: AccountDAO,
@@ -20,11 +27,11 @@ class DrawerViewModel @Inject constructor(
     }
 
     fun onTimersClick(openAndPopup: (String) -> Unit) {
-        openAndPopup(StudeezDestinations.TIMER_OVERVIEW_SCREEN)
+        openAndPopup(StudeezDestinations.TIMER_SCREEN)
     }
 
     fun onSettingsClick(open: (String) -> Unit) {
-        // TODO
+        open(StudeezDestinations.SETTINGS_SCREEN)
     }
 
     fun onLogoutClick(openAndPopUp: (String, String) -> Unit) {
@@ -34,7 +41,8 @@ class DrawerViewModel @Inject constructor(
         }
     }
 
-    fun onAboutClick(open: (String) -> Unit) {
-        // TODO
+    fun onAboutClick(open: (String) -> Unit, context: Context) {
+        val intent = Intent(Intent.ACTION_VIEW, Uri.parse(REPO_URL))
+        context.startActivity(intent)
     }
 }
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt
index 79186b5..56b81eb 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt
@@ -14,16 +14,24 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import be.ugent.sel.studeez.navigation.StudeezDestinations.HOME_SCREEN
 import be.ugent.sel.studeez.navigation.StudeezDestinations.PROFILE_SCREEN
+import be.ugent.sel.studeez.navigation.StudeezDestinations.SESSIONS_SCREEN
+import be.ugent.sel.studeez.navigation.StudeezDestinations.TASKS_SCREEN
 import be.ugent.sel.studeez.resources
 import be.ugent.sel.studeez.ui.theme.StudeezTheme
 import be.ugent.sel.studeez.R.string as AppText
 
 data class NavigationBarActions(
     val isSelectedTab: (String) -> Boolean,
+
     val onHomeClick: () -> Unit,
     val onTasksClick: () -> Unit,
     val onSessionsClick: () -> Unit,
     val onProfileClick: () -> Unit,
+
+    // AddButton
+    val onAddTaskClick: () -> Unit,
+    val onAddFriendClick: () -> Unit,
+    val onAddSessionClick: () -> Unit
 )
 
 fun getNavigationBarActions(
@@ -35,6 +43,7 @@ fun getNavigationBarActions(
         isSelectedTab = { screen ->
             screen == getCurrentScreen()
         },
+
         onHomeClick = {
             navigationBarViewModel.onHomeClick(open)
         },
@@ -47,6 +56,16 @@ fun getNavigationBarActions(
         onProfileClick = {
             navigationBarViewModel.onProfileClick(open)
         },
+
+        onAddTaskClick = {
+            navigationBarViewModel.onAddTaskClick(open)
+        },
+        onAddFriendClick = {
+            navigationBarViewModel.onAddFriendClick(open)
+        },
+        onAddSessionClick = {
+            navigationBarViewModel.onAddSessionClick(open)
+        }
     )
 }
 
@@ -71,13 +90,12 @@ fun NavigationBar(
                 )
             },
             label = { Text(text = resources().getString(AppText.tasks)) },
-            // TODO selected = navigationBarActions.isSelectedTab(TASKS_SCREEN),
-            selected = false,
+            selected = navigationBarActions.isSelectedTab(TASKS_SCREEN),
             onClick = navigationBarActions.onTasksClick
         )
 
         // Hack to space the entries in the navigation bar, make space for fab
-        BottomNavigationItem(icon = {}, onClick = {}, selected = false)
+        BottomNavigationItem(icon = {}, onClick = {}, selected = false, enabled = false)
 
         BottomNavigationItem(
             icon = {
@@ -86,8 +104,7 @@ fun NavigationBar(
                 )
             },
             label = { Text(text = resources().getString(AppText.sessions)) },
-            // TODO selected = navigationBarActions.isSelectedTab(SESSIONS_SCREEN),
-            selected = false,
+            selected = navigationBarActions.isSelectedTab(SESSIONS_SCREEN),
             onClick = navigationBarActions.onSessionsClick
         )
 
@@ -110,7 +127,7 @@ fun NavigationBar(
 fun NavigationBarPreview() {
     StudeezTheme {
         NavigationBar(
-            navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}),
+            navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {}),
         )
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt
index 1e4bd0d..e7678e5 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt
@@ -1,12 +1,16 @@
 package be.ugent.sel.studeez.common.composable.navbar
 
+import be.ugent.sel.studeez.common.snackbar.SnackbarManager
 import be.ugent.sel.studeez.domain.AccountDAO
 import be.ugent.sel.studeez.domain.LogService
 import be.ugent.sel.studeez.navigation.StudeezDestinations.HOME_SCREEN
 import be.ugent.sel.studeez.navigation.StudeezDestinations.PROFILE_SCREEN
+import be.ugent.sel.studeez.navigation.StudeezDestinations.SESSIONS_SCREEN
+import be.ugent.sel.studeez.navigation.StudeezDestinations.TASKS_SCREEN
 import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
+import be.ugent.sel.studeez.R.string as AppText
 
 @HiltViewModel
 class NavigationBarViewModel @Inject constructor(
@@ -19,14 +23,29 @@ class NavigationBarViewModel @Inject constructor(
     }
 
     fun onTasksClick(open: (String) -> Unit) {
-        // TODO
+        open(TASKS_SCREEN)
     }
 
     fun onSessionsClick(open: (String) -> Unit) {
-        // TODO
+        open(SESSIONS_SCREEN)
     }
 
     fun onProfileClick(open: (String) -> Unit) {
         open(PROFILE_SCREEN)
     }
+
+    fun onAddTaskClick(open: (String) -> Unit) {
+        // TODO open(CREATE_TASK_SCREEN)
+        SnackbarManager.showMessage(AppText.create_task_not_possible_yet) // TODO Remove
+    }
+
+    fun onAddFriendClick(open: (String) -> Unit) {
+        // TODO open(SEARCH_FRIENDS_SCREEN)
+        SnackbarManager.showMessage(AppText.add_friend_not_possible_yet) // TODO Remove
+    }
+
+    fun onAddSessionClick(open: (String) -> Unit) {
+        // TODO open(CREATE_SESSION_SCREEN)
+        SnackbarManager.showMessage(AppText.create_session_not_possible_yet) // TODO Remove
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/ext/ShapeExt.kt b/app/src/main/java/be/ugent/sel/studeez/common/ext/ShapeExt.kt
new file mode 100644
index 0000000..2114a74
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/common/ext/ShapeExt.kt
@@ -0,0 +1,8 @@
+package be.ugent.sel.studeez.common.ext
+
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.ui.unit.dp
+
+fun defaultButtonShape(): RoundedCornerShape {
+    return RoundedCornerShape(20.dp)
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/EditTimerState.kt b/app/src/main/java/be/ugent/sel/studeez/data/EditTimerState.kt
new file mode 100644
index 0000000..9686e94
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/data/EditTimerState.kt
@@ -0,0 +1,4 @@
+package be.ugent.sel.studeez.data
+
+class EditTimerState {
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/HoursMinutesSeconds.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/HoursMinutesSeconds.kt
index 856aa26..2f630c9 100644
--- a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/HoursMinutesSeconds.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/HoursMinutesSeconds.kt
@@ -1,4 +1,15 @@
 package be.ugent.sel.studeez.data.local.models.timer_functional
 
-data class HoursMinutesSeconds(val hours: String, val minutes: String, val seconds: String
-)
\ No newline at end of file
+data class HoursMinutesSeconds(val hours: Int, val minutes: Int, val seconds: Int) {
+
+    fun getTotalSeconds(): Int {
+        return hours * 60 * 60 + minutes * 60 + seconds
+    }
+
+    override fun toString(): String {
+        val hoursString = hours.toString().padStart(2, '0')
+        val minutesString = minutes.toString().padStart(2, '0')
+        val secondsString = seconds.toString().padStart(2, '0')
+        return "$hoursString : $minutesString : $secondsString"
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/Time.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/Time.kt
index ec7702d..c512d96 100644
--- a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/Time.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_functional/Time.kt
@@ -17,11 +17,7 @@ class Time(initialTime: Int) {
         val minutes: Int = (time / (60)) % 60
         val seconds: Int = time % 60
 
-        return HoursMinutesSeconds(
-            hours.toString().padStart(2, '0'),
-            minutes.toString().padStart(2, '0'),
-            seconds.toString().padStart(2, '0')
-        )
+        return HoursMinutesSeconds(hours, minutes, seconds)
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/CustomTimerInfo.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/CustomTimerInfo.kt
index 5e06536..d88e39f 100644
--- a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/CustomTimerInfo.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/CustomTimerInfo.kt
@@ -6,11 +6,10 @@ import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalTimer
 class CustomTimerInfo(
     name: String,
     description: String,
-    private val studyTime: Int,
+    var studyTime: Int,
     id: String = ""
 ):  TimerInfo(id, name, description) {
 
-
     override fun getFunctionalTimer(): FunctionalTimer {
         return FunctionalCustomTimer(studyTime)
     }
@@ -24,4 +23,8 @@ class CustomTimerInfo(
         )
     }
 
+    override fun <T> accept(visitor: TimerInfoVisitor<T>): T {
+        return visitor.visitCustomTimerInfo(this)
+    }
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/EndlessTimerInfo.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/EndlessTimerInfo.kt
index d459a4e..45f7fd7 100644
--- a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/EndlessTimerInfo.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/EndlessTimerInfo.kt
@@ -22,4 +22,8 @@ class EndlessTimerInfo(
         )
     }
 
+    override fun <T> accept(visitor: TimerInfoVisitor<T>): T {
+        return visitor.visitEndlessTimerInfo(this)
+    }
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/PomodoroTimerInfo.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/PomodoroTimerInfo.kt
index 18bcea6..dbbb0be 100644
--- a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/PomodoroTimerInfo.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/PomodoroTimerInfo.kt
@@ -2,13 +2,14 @@ package be.ugent.sel.studeez.data.local.models.timer_info
 
 import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalPomodoroTimer
 import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalTimer
+import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalTimerVisitor
 
 class PomodoroTimerInfo(
     name: String,
     description: String,
-    private val studyTime: Int,
-    private val breakTime: Int,
-    private val repeats: Int,
+    val studyTime: Int,
+    val breakTime: Int,
+    val repeats: Int,
     id: String = ""
 ):  TimerInfo(id, name, description) {
 
@@ -28,4 +29,8 @@ class PomodoroTimerInfo(
         )
     }
 
+    override fun <T> accept(visitor: TimerInfoVisitor<T>): T {
+        return visitor.visitBreakTimerInfo(this)
+    }
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfo.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfo.kt
index 343e7e3..e4deded 100644
--- a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfo.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfo.kt
@@ -7,8 +7,8 @@ import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalTimer
  */
 abstract class TimerInfo(
     val id: String,
-    val name: String,
-    val description: String
+    var name: String,
+    var description: String
 ) {
 
     /**
@@ -21,6 +21,7 @@ abstract class TimerInfo(
      * TODO implementaties hebben nog hardgecodeerde strings.
      */
     abstract fun asJson(): Map<String, Any>
+    abstract fun <T> accept(visitor: TimerInfoVisitor<T>): T
 
 }
 
diff --git a/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfoVisitor.kt b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfoVisitor.kt
new file mode 100644
index 0000000..e331c8d
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/data/local/models/timer_info/TimerInfoVisitor.kt
@@ -0,0 +1,11 @@
+package be.ugent.sel.studeez.data.local.models.timer_info
+
+interface TimerInfoVisitor<T> {
+
+    fun visitCustomTimerInfo(customTimerInfo: CustomTimerInfo): T
+
+    fun visitEndlessTimerInfo(endlessTimerInfo: EndlessTimerInfo): T
+
+    fun visitBreakTimerInfo(pomodoroTimerInfo: PomodoroTimerInfo): T
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/navigation/StudeezDestinations.kt b/app/src/main/java/be/ugent/sel/studeez/navigation/StudeezDestinations.kt
index 4e95243..b5bcfda 100644
--- a/app/src/main/java/be/ugent/sel/studeez/navigation/StudeezDestinations.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/navigation/StudeezDestinations.kt
@@ -1,23 +1,32 @@
 package be.ugent.sel.studeez.navigation
 
 object StudeezDestinations {
-    const val SPLASH_SCREEN = "splash"
-    const val SIGN_UP_SCREEN = "signup"
-    const val LOGIN_SCREEN = "login"
-
+    // NavBar
     const val HOME_SCREEN = "home"
-    const val TIMER_OVERVIEW_SCREEN = "timer_overview"
+    const val TASKS_SCREEN = "tasks"
+    const val SESSIONS_SCREEN = "sessions"
+    const val PROFILE_SCREEN = "profile"
+
+    // Drawer
+    const val TIMER_SCREEN = "timer_overview"
+    const val SETTINGS_SCREEN = "settings"
+
+    // Login flow
+    const val SPLASH_SCREEN = "splash"
+    const val LOGIN_SCREEN = "login"
+    const val SIGN_UP_SCREEN = "signup"
+
+    // Studying flow
     const val TIMER_SELECTION_SCREEN = "timer_selection"
     const val SESSION_SCREEN = "session"
     const val SESSION_RECAP = "session_recap"
- //    const val TASKS_SCREEN = "tasks"
- //    const val SESSIONS_SCREEN = "sessions"
-    const val PROFILE_SCREEN = "profile"
 
-//    const val TIMERS_SCREEN = "timers"
-//    const val SETTINGS_SCREEN = "settings"
+    // Friends flow
+    const val SEARCH_FRIENDS_SCREEN = "search_friends"
 
-    // Edit screens
+    // Create & edit screens
+    const val CREATE_TASK_SCREEN = "create_task"
+    const val CREATE_SESSION_SCREEN = "create_session"
     const val EDIT_PROFILE_SCREEN = "edit_profile"
 
     const val ADD_TIMER_SCREEN = "add_timer"
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt
index 1f760e5..f02852e 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt
@@ -33,13 +33,13 @@ fun HomeRoute(
 fun HomeScreen(
     onStartSessionClick: () -> Unit,
     drawerActions: DrawerActions,
-    navigationBarActions: NavigationBarActions,
+    navigationBarActions: NavigationBarActions
 ) {
     PrimaryScreenTemplate(
         title = resources().getString(R.string.home),
         drawerActions = drawerActions,
         navigationBarActions = navigationBarActions,
-        barAction = { FriendsAction() }
+        // TODO barAction = { FriendsAction() }
     ) {
         BasicButton(R.string.start_session, Modifier.basicButton()) {
             onStartSessionClick()
@@ -63,6 +63,6 @@ fun HomeScreenPreview() {
     HomeScreen(
         onStartSessionClick = {},
         drawerActions = DrawerActions({}, {}, {}, {}, {}),
-        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {})
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {})
     )
 }
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileEditScreen.kt
index 3dbe270..c6fcbaf 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileEditScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileEditScreen.kt
@@ -63,7 +63,10 @@ fun EditProfileScreen(
             BasicTextButton(
                 text = R.string.save,
                 Modifier.textButton(),
-                action = editProfileActions.onSaveClick
+                action = {
+                    editProfileActions.onSaveClick()
+                    goBack()
+                }
             )
             BasicTextButton(
                 text = R.string.delete_profile,
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt
index 0b4a67f..9c76337 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt
@@ -88,6 +88,6 @@ fun ProfileScreenPreview() {
     ProfileScreen(
         profileActions = ProfileActions({ null }, {}),
         drawerActions = DrawerActions({}, {}, {}, {}, {}),
-        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {})
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {})
     )
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/sessions/SessionsScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/sessions/SessionsScreen.kt
new file mode 100644
index 0000000..fe60ca8
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/sessions/SessionsScreen.kt
@@ -0,0 +1,42 @@
+package be.ugent.sel.studeez.screens.sessions
+
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
+import be.ugent.sel.studeez.common.composable.PrimaryScreenTemplate
+import be.ugent.sel.studeez.common.composable.drawer.DrawerActions
+import be.ugent.sel.studeez.common.composable.navbar.NavigationBarActions
+import be.ugent.sel.studeez.resources
+import be.ugent.sel.studeez.R.string as AppText
+
+@Composable
+fun SessionsRoute(
+    // viewModel: SessionsViewModel,
+    drawerActions: DrawerActions,
+    navigationBarActions: NavigationBarActions
+) {
+    SessionsScreen(
+        drawerActions = drawerActions,
+        navigationBarActions = navigationBarActions
+    )
+}
+
+@Composable
+fun SessionsScreen(
+    drawerActions: DrawerActions,
+    navigationBarActions: NavigationBarActions
+) {
+    PrimaryScreenTemplate(
+        title = resources().getString(AppText.upcoming_sessions),
+        drawerActions = drawerActions,
+        navigationBarActions = navigationBarActions
+    ) {
+        Text(
+            text = resources().getString(AppText.sessions_temp_description),
+            modifier = Modifier.fillMaxSize(),
+            textAlign = TextAlign.Center
+        )
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/settings/SettingsScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/settings/SettingsScreen.kt
new file mode 100644
index 0000000..e1098b7
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/settings/SettingsScreen.kt
@@ -0,0 +1,37 @@
+package be.ugent.sel.studeez.screens.settings
+
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
+import be.ugent.sel.studeez.common.composable.DrawerScreenTemplate
+import be.ugent.sel.studeez.common.composable.drawer.DrawerActions
+import be.ugent.sel.studeez.resources
+import be.ugent.sel.studeez.R.string as AppText
+
+@Composable
+fun SettingsRoute(
+    // viewModel: SettingsViewModel,
+    drawerActions: DrawerActions
+) {
+    SettingsScreen(
+        drawerActions = drawerActions
+    )
+}
+
+@Composable
+fun SettingsScreen(
+    drawerActions: DrawerActions
+) {
+    DrawerScreenTemplate(
+        title = resources().getString(AppText.settings),
+        drawerActions = drawerActions
+    ) {
+        Text(
+            text = resources().getString(AppText.settings_temp_description),
+            modifier = Modifier.fillMaxSize(),
+            textAlign = TextAlign.Center
+        )
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/GetTimerEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/GetTimerEditScreen.kt
new file mode 100644
index 0000000..c6579e8
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/GetTimerEditScreen.kt
@@ -0,0 +1,35 @@
+package be.ugent.sel.studeez.screens.timer_edit
+
+import android.annotation.SuppressLint
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import be.ugent.sel.studeez.R
+import be.ugent.sel.studeez.common.composable.BasicButton
+import be.ugent.sel.studeez.common.ext.basicButton
+import be.ugent.sel.studeez.data.local.models.timer_info.CustomTimerInfo
+import be.ugent.sel.studeez.data.local.models.timer_info.EndlessTimerInfo
+import be.ugent.sel.studeez.data.local.models.timer_info.PomodoroTimerInfo
+import be.ugent.sel.studeez.data.local.models.timer_info.TimerInfoVisitor
+
+class GetTimerEditView: TimerInfoVisitor<Unit> {
+
+    @SuppressLint("ComposableNaming")
+    override fun visitCustomTimerInfo(customTimerInfo: CustomTimerInfo) {
+
+    }
+
+    @SuppressLint("ComposableNaming")
+    override fun visitEndlessTimerInfo(endlessTimerInfo: EndlessTimerInfo) {
+
+    }
+
+    @SuppressLint("ComposableNaming")
+    override fun visitBreakTimerInfo(pomodoroTimerInfo: PomodoroTimerInfo) {
+
+    }
+
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/TimerEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/TimerEditScreen.kt
new file mode 100644
index 0000000..ac1ff8a
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/TimerEditScreen.kt
@@ -0,0 +1,2 @@
+package be.ugent.sel.studeez.screens.timer_edit
+
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/TimerEditViewModel.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/TimerEditViewModel.kt
new file mode 100644
index 0000000..20f5952
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/TimerEditViewModel.kt
@@ -0,0 +1,4 @@
+package be.ugent.sel.studeez.screens.timer_edit
+
+class TimerEditViewModel {
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/AbstractTimerEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/AbstractTimerEditScreen.kt
new file mode 100644
index 0000000..59b04e7
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/AbstractTimerEditScreen.kt
@@ -0,0 +1,4 @@
+package be.ugent.sel.studeez.screens.timer_edit
+
+abstract class AbstractTimerEditScreen {
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/BreakTimerEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/BreakTimerEditScreen.kt
new file mode 100644
index 0000000..1405682
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/BreakTimerEditScreen.kt
@@ -0,0 +1,4 @@
+package be.ugent.sel.studeez.screens.timer_edit.editScreens
+
+class BreakTimerEditScreen {
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/CustomTimerEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/CustomTimerEditScreen.kt
new file mode 100644
index 0000000..bbe66ec
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/CustomTimerEditScreen.kt
@@ -0,0 +1,4 @@
+package be.ugent.sel.studeez.screens.timer_edit
+
+class CustomTimerEditScreen {
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/EndlessTimerEditScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/EndlessTimerEditScreen.kt
new file mode 100644
index 0000000..5c6263d
--- /dev/null
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_edit/editScreens/EndlessTimerEditScreen.kt
@@ -0,0 +1,4 @@
+package be.ugent.sel.studeez.screens.timer_edit.editScreens
+
+class EndlessTimerEditScreen {
+}
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_overview/TimerOverviewScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_overview/TimerOverviewScreen.kt
index 0d48594..f5b7c3b 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/timer_overview/TimerOverviewScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_overview/TimerOverviewScreen.kt
@@ -64,6 +64,14 @@ fun TimerOverviewScreen(
         drawerActions = drawerActions
     ) {
         LazyColumn {
+            // Custom timer, select new duration each time
+            item {
+                TimerEntry(timerInfo = CustomTimerInfo(
+                    name = resources().getString(R.string.custom_name),
+                    description = resources().getString(R.string.custom_name),
+                    studyTime = 0
+                ))
+            }
             // Default Timers, cannot be edited
             items(timerOverviewActions.getDefaultTimers()) {
                 TimerEntry(timerInfo = it) {}
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt
index ac46b5c..5ef775e 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt
@@ -1,14 +1,20 @@
 package be.ugent.sel.studeez.screens.timer_selection
 
+import android.widget.TimePicker
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.tooling.preview.Preview
 import be.ugent.sel.studeez.R
 import be.ugent.sel.studeez.common.composable.SecondaryScreenTemplate
 import be.ugent.sel.studeez.common.composable.StealthButton
+import be.ugent.sel.studeez.common.composable.TimePickerButton
 import be.ugent.sel.studeez.common.composable.TimerEntry
+import be.ugent.sel.studeez.data.local.models.timer_functional.HoursMinutesSeconds
+import be.ugent.sel.studeez.data.local.models.timer_functional.Time
+import be.ugent.sel.studeez.data.local.models.timer_info.CustomTimerInfo
 import be.ugent.sel.studeez.data.local.models.timer_info.TimerInfo
 import be.ugent.sel.studeez.resources
 import kotlinx.coroutines.flow.Flow
@@ -17,6 +23,8 @@ import kotlinx.coroutines.flow.flowOf
 data class TimerSelectionActions(
     val getAllTimers: () -> Flow<List<TimerInfo>>,
     val startSession: (TimerInfo) -> Unit,
+    val pickDuration: (TimePicker?, Int, Int) -> Unit,
+    val customTimeStudyTime: Int
 )
 
 fun getTimerSelectionActions(
@@ -26,6 +34,10 @@ fun getTimerSelectionActions(
     return TimerSelectionActions(
         getAllTimers = viewModel::getAllTimers,
         startSession = { viewModel.startSession(open, it) },
+        pickDuration = { _, hour: Int, minute: Int ->
+            viewModel.customTimerStudyTime.value = hour * 60 * 60 + minute * 60
+        },
+        customTimeStudyTime = viewModel.customTimerStudyTime.value
     )
 }
 
@@ -52,6 +64,11 @@ fun TimerSelectionScreen(
         popUp = popUp
     ) {
         LazyColumn {
+            // Custom timer with duration selection button
+            item {
+                CustomTimerEntry(timerSelectionActions)
+            }
+
             // All timers
             items(timers.value) { timerInfo ->
                 TimerEntry(
@@ -68,11 +85,39 @@ fun TimerSelectionScreen(
     }
 }
 
+@Composable
+fun CustomTimerEntry(
+    timerSelectionActions: TimerSelectionActions
+) {
+    val timerInfo = CustomTimerInfo(
+        name = resources().getString(R.string.custom_name),
+        description = resources().getString(R.string.custom_description),
+        studyTime = timerSelectionActions.customTimeStudyTime
+    )
+    val hms: HoursMinutesSeconds = Time(timerInfo.studyTime).getAsHMS()
+
+    TimerEntry(
+        timerInfo = timerInfo,
+        leftButton = {
+            StealthButton(
+                text = R.string.start,
+                onClick = { timerSelectionActions.startSession(timerInfo) }
+            )
+        },
+        rightButton = {
+            TimePickerButton(
+                hoursMinutesSeconds = hms,
+                onTimeSetListener = timerSelectionActions.pickDuration
+            )
+        }
+    )
+}
+
 @Preview
 @Composable
 fun TimerSelectionPreview() {
     TimerSelectionScreen(
-        timerSelectionActions = TimerSelectionActions({ flowOf() }, {}),
+        timerSelectionActions = TimerSelectionActions({ flowOf() }, {}, { _, _, _ -> {} }, 0),
         popUp = {}
     )
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionViewModel.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionViewModel.kt
index c555bfa..ab42973 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionViewModel.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionViewModel.kt
@@ -1,5 +1,9 @@
 package be.ugent.sel.studeez.screens.timer_selection
 
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import be.ugent.sel.studeez.data.SelectedTimerState
 import be.ugent.sel.studeez.data.local.models.timer_info.TimerInfo
 import be.ugent.sel.studeez.domain.LogService
@@ -17,6 +21,8 @@ class TimerSelectionViewModel @Inject constructor(
     logService: LogService
 ) : StudeezViewModel(logService) {
 
+    var customTimerStudyTime: MutableState<Int> = mutableStateOf(0)
+
     fun getAllTimers() : Flow<List<TimerInfo>> {
         return timerDAO.getAllTimers()
     }
diff --git a/app/src/main/java/be/ugent/sel/studeez/ui/theme/Theme.kt b/app/src/main/java/be/ugent/sel/studeez/ui/theme/Theme.kt
index bc2c315..9a29e85 100644
--- a/app/src/main/java/be/ugent/sel/studeez/ui/theme/Theme.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/ui/theme/Theme.kt
@@ -12,7 +12,9 @@ import androidx.compose.ui.graphics.Color
 private val DarkColorPalette = darkColors(
     primary = Blue100,
     primaryVariant = Blue120,
-    secondary = Yellow100
+    secondary = Yellow100,
+
+    onPrimary = Color.White
 )
 
 private val LightColorPalette = lightColors(
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 9e98592..8f02fc5 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,5 +1,6 @@
 <resources>
-    <!-- Common -->
+    <!-- ========== Common ========== -->
+
     <string name="app_name">Studeez</string>
     <string name="username">Username</string>
     <string name="email">Email</string>
@@ -7,20 +8,75 @@
     <string name="repeat_password">Repeat password</string>
     <string name="menu">Menu</string>
 
-        <!-- Actions -->
-        <string name="confirm">Confirm</string>
-        <string name="save">Save</string>
-        <string name="discard">Discard</string>
-        <string name="cancel">Cancel</string>
-        <string name="go_back">Go back</string>
-        <string name="next">Next</string>
-        <string name="start">Start</string>
+    <!-- Actions -->
+    <string name="confirm">Confirm</string>
+    <string name="save">Save</string>
+    <string name="discard">Discard</string>
+    <string name="cancel">Cancel</string>
+    <string name="go_back">Go back</string>
+    <string name="next">Next</string>
+    <string name="start">Start</string>
 
-        <!-- Messages -->
-        <string name="success">Success!</string>
-        <string name="try_again">Try again</string>
-        <string name="generic_error">Something wrong happened. Please try again.</string>
-        <string name="email_error">Please insert a valid email.</string>
+    <!-- Messages -->
+    <string name="success">Success!</string>
+    <string name="try_again">Try again</string>
+    <string name="generic_error">Something wrong happened. Please try again.</string>
+    <string name="email_error">Please insert a valid email.</string>
+
+    <!-- ========== NavBar ========== -->
+
+    <!-- HomeScreen -->
+    <string name="home">Home</string>
+    <string name="start_session">Start session</string>
+
+    <!-- Tasks -->
+    <string name="tasks">Tasks</string>
+    <string name="task">Task</string>
+
+    <!-- Sessions -->
+    <string name="sessions_temp_description">Looks like you found the sessions screen! In here, your upcoming studying sessions with friends will be listed. You can accept invites or edit your own.</string> <!-- TODO Remove this description line once implemented. -->
+    <string name="sessions">Sessions</string>
+    <string name="session">Session</string>
+    <string name="end_session">End session</string>
+    <string name="upcoming_sessions">Upcoming sessions</string>
+
+    <!-- Profile -->
+    <string name="profile">Profile</string>
+    <string name="no_username">Unknown username</string>
+    <string name="edit_profile">Edit profile</string>
+    <string name="editing_profile">Editing profile</string>
+    <string name="delete_profile">Delete profile</string>
+
+    <!-- ========== Drawer ========== -->
+
+    <string name="log_out">Log out</string>
+    <string name="profile_picture_description">Profile Picture</string>
+    <string name="user_description">Normal user</string>
+
+    <!-- Timers -->
+    <string name="timers">Timers</string>
+    <string name="edit">Edit</string>
+    <string name="add_timer">Add timer</string>
+    <string name="pick_time">Select time</string>
+    <string name="state_focus">Focus!</string>
+    <plurals name="state_focus_remaining">
+        <item quantity="zero">Focus one more time!</item>
+        <item quantity="one">Focus! (%d break remaining)</item>
+        <item quantity="other">Focus! (%d breaks remaining)</item>
+    </plurals>
+    <string name="state_done">Done!</string>
+    <string name="state_take_a_break">Take a break!</string>
+    <string name="custom_name">Custom</string>
+    <string name="custom_description">Select how long you want to study</string>
+
+    <!-- Settings -->
+    <string name="settings_temp_description">Looks like you found the settings screen! In the future, this will enable you to edit your preferenes such as light/dark mode, end sessions automatically when we detect you are gone etc.</string> <!-- TODO Remove this description line once implemented. -->
+    <string name="settings">Settings</string>
+
+    <!-- About -->
+    <string name="about">About Studeez</string>
+
+    <!-- ========== Login flow ========== -->
 
     <!-- SignUpScreen -->
     <string name="create_account">Create account</string>
@@ -36,51 +92,22 @@
     <string name="recovery_email_sent">Check your inbox for the recovery email.</string>
     <string name="empty_password_error">Password cannot be empty.</string>
 
-    <!-- HomeScreen -->
-    <string name="home">Home</string>
-    <string name="start_session">Start session</string>
+    <!-- ========== Studying flow ========== -->
 
-    <!-- Tasks -->
-    <string name="tasks">Tasks</string>
+    <!-- ========== Friends flow ========== -->
 
-    <!-- Sessions -->
-    <string name="sessions">Sessions</string>
-    <string name="end_session">End session</string>
-
-    <!-- Profile -->
-    <string name="profile">Profile</string>
-    <string name="no_username">Unknown username</string>
-    <string name="edit_profile">Edit profile</string>
-    <string name="editing_profile">Editing profile</string>
-    <string name="delete_profile">Delete profile</string>
-
-    <!-- Friends -->
     <string name="friends">Friends</string>
+    <string name="friend">Friend</string>
+    <string name="add_friend_not_possible_yet">Adding friends still needs to be implemented. Hang on tight!</string> <!-- TODO Remove this description line once implemented. -->
 
-    <!-- Drawer / SideMenu -->
-    <string name="log_out">Log out</string>
-    <string name="profile_picture_description">Profile Picture</string>
-    <string name="user_description">Normal user</string>
+    <!-- ========== Create & edit screens ========== -->
 
-    <!-- Timers -->
-    <string name="timers">Timers</string>
-    <string name="edit">Edit</string>
-    <string name="add_timer">Add timer</string>
-    <string name="state_focus">Focus!</string>
-    <plurals name="state_focus_remaining">
-        <item quantity="zero">Focus one more time!</item>
-        <item quantity="one">Focus! (%d break remaining)</item>
-        <item quantity="other">Focus! (%d breaks remaining)</item>
-    </plurals>
-    <string name="state_done">Done!</string>
-    <string name="state_take_a_break">Take a break!</string>
-
-    <!-- Settings -->
-    <string name="settings">Settings</string>
-
-    <!-- About -->
-    <string name="about">About Studeez</string>
+    <!-- Task -->
+    <string name="create_task_not_possible_yet">Creating tasks still needs to be implemented. Hang on tight!</string> <!-- TODO Remove this description line once implemented. -->
 
+    <!-- Session -->
+    <string name="create_session_not_possible_yet">Creating sessions still needs to be implemented. Hang on tight!</string> <!-- TODO Remove this description line once implemented. -->
+  
     <!-- Add Timer -->
     <string name="addTimer_description_error">Timer description cannot be empty!</string>
     <string name="addTimer_description">Timer description</string>