The overall aim of the project overview was first to display the same level of detail than the overview line inside Cubase. However, the overview line doesn't render lanes even when they're expanded in the track list.
We plan to move forward to a more detailed view later on which will get closer to what you can see and do inside Cubase's sequencer view.
Though these are our wishes, this is not official for short-term updates and we can't say more about it for now.
Be sure that this app will constantly grow anyway.