Selecting markers for specific Instruments

[segtendoppcc42]

When you click the "Select instrument" button it selects not just the notes, but also any markers for that instrument. Plus, if you change that instrument into another, it changes the markers too.

[AAAlex]

WE NEED THIS XD

[DarrelJohnson]

I think markers UI need a complete overhaul. I made a forum previously about my suggestions