Parenting Markers + Other Enhanced Marker Features
More flexibility with markers:
The ability to PARENT them to clips so that they stick to that clip, similar to how you can parent things together in After Effects with the whip tool. That way you never have to worry if a cut you just made has thrown off all of the markers in your timeline. You can rest assured, knowing that they're sticking and moving with your clips.
Ability to 'hide' markers that are completed (if using them for notes/revision purposes) so that they are transparent and don't show up as a color in the timeline.
Ability to select all markers and move them freely
And obviously the ability to copy them with your sequence or move them to another one. Even if it's just being able to draw a selection box over them with your mouse. Something is better than nothing to select them and copy/paste or delete multiple at a time, etc.
Kevin Monahan commented
Good requests but you should break these out individually. The product team rejects any request with multiple items as they are too difficult to track.