Insert / Overwrite sequence markers
It's great that you can now copy/paste clips and maintain sequence markers, but you can't insert/overwrite and maintain sequence markers. For those of us who select using string-out sequences and pancake timelines, it's a bit of a bummer.
For example, many times I'll make a sequence of all the takes of a scene. I'll mark clips I like with a green marker, and stuff I really like with a red marker. I'll then cut all the selected takes into a new sequence using pancake timelines... but unfortunately, my markers do not translate over to the new sequence, so I lose the flags to my "super-selects".