Pls provide below short cuts and let users to assign the shortcut key.

Move selected notes to the next beat (beat value should be selectable by short cut).

Move selected notes to the previous beat.

Copy selected notes to the next beat.

Move selected notes to the previous staff.

Move selected notes to the following staff.

Copy selected notes to the previous staff.

Copy selected notes to the following staff.

Change MIDI channel of the selected notes to 1.

Change MIDI channel of the selected notes to 2.

Change MIDI channel of the selected notes to 3.

Change MIDI channel of the selected notes to 4.

Select top notes from the selected notes.

Select middle notes from the selected notes.

Select bottom notes from the selected notes.