At the moment my 6x6 experiments restrain my eyes on the Aeros. Navigating involves continues selection of NEXT part/track. On top of that it is very easy to accidentally create a part I don’t need while it is impossible to get rid of it afterwards.
To improve navigation,
1.- Next part should be by default selected. I should need to take actions (select another part) only when I want to interrupt serial operation. Otherwise Aeros should just follow BeatBuddy, switching from part to part serially, like it does in 2x2, without having to press any extra buttons. For this to happen the only thing you need to change is having the next part selected by default.
2.- If we can set the maximum number of parts when creating a 6x6 song, we would need no extra actions when reaching the end of a song. So like in 2x2 mode when reaching the last part Aeros would chose the first part by default. Accidental generation of song parts would never happen. No extra button presses at the end of a song.
A generalisation of my second suggestion would be to allow songs with a subset of 6x6 . I have songs I treat like 2x4 for example (2 tracks, 4 parts) or 3x5 or even 1x6. If we could chose the song matrix dimensions when making a new song, we would have two concerns less while performing.
I think the above improvements would enhance the 6x6 mode with the current midi implementation. When the long awaited extended midi implementation comes, it would allow the needed exceptions in this serial flow by using an external midi controller.