reenable scene/track navigation

src/device/arrange/track.rs

@@ -261,6 +261,7 @@ pub trait HasTracks: AsRef<Vec<Track>> + AsMut<Vec<Track>> + HasClock + HasTrack
 
 impl<T: HasTracks
     + HasScenes
+    + HasSelection
     + HasJack<'static>
     + Namespace<usize>
     + Namespace<Arc<[Connect]>>
@@ -274,6 +275,7 @@ impl<T: HasTracks
 #[tek_proc::commands(TracksCommand)]
 pub trait TracksController: HasTracks
     + HasScenes
+    + HasSelection
     + HasJack<'static>
     + Namespace<usize>
     + Namespace<Arc<[Connect]>>
@@ -316,6 +318,29 @@ pub trait TracksController: HasTracks
         let (_index, _) = self.tracks_add_one(None, None, [].into(), [].into())?;
         Ok(None)
     }
+
+    #[command(Select = "select")]
+    fn track_select (&mut self) -> Perhaps<TracksCommand> {
+        let tracks = self.tracks().len();
+        let select = self.selection_mut().select_track(tracks);
+        *self.selection_mut() = select;
+        Ok(None)
+    }
+
+    #[command(Next = "next")]
+    fn track_select_next (&mut self) -> Perhaps<TracksCommand> {
+        let tracks = self.tracks().len();
+        let select = self.selection().select_track_next(tracks);
+        *self.selection_mut() = select;
+        Ok(None)
+    }
+
+    #[command(Prev = "prev")]
+    fn track_select_prev (&mut self) -> Perhaps<TracksCommand> {
+        let select = self.selection_mut().select_track_prev();
+        *self.selection_mut() = select;
+        Ok(None)
+    }
 }
 
 impl<