Features LMMS could have

I am writing all my ideas here and only filing some of them on Github. Also some of these are probably not good and can be done in a better way, so then it is good they aren't filed yet.

1. Copy and paste more than one segment in the song editor.
2. Group instrument tracks
3. Draw automation with path/vector tools
4. Play samples in the sample track from anywhere (at least from each bar).
5. Export to MIDI
6. Export between loop points.
7. Transform a B&B track to a normal instrument track. Makes it easier to go in and spice it up with variations.
8. Audio recording
9. In the B&B editor. Option to hide unused drum tracks so you don't have to scroll down to see the drums in action.
10. Connect a sample track to an instrument track and use the instruments (MIDI) notes to move the sound sample up and down in real time. In other words; if I had automated the green square in AudioFileProcessor it would move the sample up and down (in real time). Kind of like how autotune would control the pitch. You would need LMMS to make sure the sample don't run slower or faster on lower and higher notes than the original. Could possibly be implemented by giving Sample Track exactly that, a green button, and it's own window similar to AFP.
11. A Piano Roll Editor where you set the start (noteOn) and end (noteOff). If you set noteOff on a different note than noteOn it will pitch bend with automation. Graphics (colored lines between?) show what start and end is connected to each other.
12. Ghost Notes: See selected intrument tracks in one Piano Roll, different color.
13.