Shortcuts to access Mod Wheel/Pitch Bend/Breath/Velocity/Aftertouch settings.
Performance control settings also need quick shortcuts instead of always entering Performance Edit mode, select Configuration then press a performance knob.
To be honest I find two wasted dedicated buttons: Track and Pattern. They don’t have useful menu. I never use those. Their functionality should have been hidden into the main menu system instead of the above complex features which are used frequently.