add widget dynamic helper and Split::up

crates/tek_sequencer/src/arranger.rs

@@ -12,8 +12,6 @@ pub struct Arranger<E: Engine> {
     pub phrases:           Arc<RwLock<PhrasePool<E>>>,
     /// Phrase editor view
     pub editor:            PhraseEditor<E>,
-    /// This allows the sequencer view to be moved or hidden.
-    pub show_sequencer:    Option<tek_core::Direction>,
     /// Status bar
     pub status:            ArrangerStatusBar,
     /// Height of arrangement
@@ -36,7 +34,10 @@ pub enum ArrangerFocus {
 /// Status bar for arranger ap
 pub enum ArrangerStatusBar {
     Transport,
-    Arrangement,
+    ArrangementMix,
+    ArrangementTrack,
+    ArrangementScene,
+    ArrangementClip,
     PhrasePool,
     PhraseEditor,
 }
@@ -116,7 +117,6 @@ impl<E: Engine> Arranger<E> {
     ) -> Self {
         let mut app = Self {
             focus_cursor:   (0, 1),
-            show_sequencer: Some(tek_core::Direction::Down),
             editor:         PhraseEditor::new(),
             status:         ArrangerStatusBar::Transport,
             transport,