a regular undo button + more suggestions

[DazzXY]

so i think an undo button (i know the shortcut but yknow) would be cool and also unlock the hidden instruments

also real collab thingys where you can work at the same time with someone (dunno how possible this is, heck, it might now be possible at all)

also make it so you can convert midis to mp3 but how it sounds in os (i know this is possible)

let me know if you think these are good suggestions