you can create channels now!!! :D

src/ui/widgets/sidebar.py

@@ -3,6 +3,7 @@ from textual.widgets import Button, ListView
 from textual.app import ComposeResult
 
 from ui.widgets.channel import Channel
+from ui.screens.channel_create_screen import ChannelCreateScreen
 
 
 class Sidebar(Vertical):
@@ -22,6 +23,10 @@ class Sidebar(Vertical):
     }
     """
     
+    def on_button_pressed(self, event: Button.Pressed):
+        if event.button.id == "add-channel":
+            self.app.push_screen(ChannelCreateScreen())
+    
     def compose(self) -> ComposeResult:
         with VerticalScroll(id="channels"):
             for i, channel in enumerate(self.app.project.channels):

src/ui/widgets/timeline.py

@@ -12,8 +12,9 @@ class TimelineRow(Horizontal):
     DEFAULT_CSS = """
     TimelineRow {
         background: $surface-lighten-1;
-        max-height: 8;
+        height: 8;
         margin-bottom: 1;
+        width: 100;
     }
     """
 
@@ -22,7 +23,8 @@ class Timeline(Vertical):
     Timeline {
         #rows {
             hatch: "-" $surface-lighten-1;
-            padding: 1 0;
+            padding: 0 0;
+            overflow-x: auto;
             
             .beat-line {
                 color: $surface-lighten-1;