That works. But I think I mislead you with my question, Jim. I would love to have both sequences totally opened and editable. Meaning not flattened, as your answer lends to do.
My fault for not clarifining. I can easily have 2 sequences totally opened by just dragging a sequence tab to a specific drop zone. Just wondering if I can sync lock the playhead on them both so I don't have to use the timecode window to move each sequence to the exact location I'm working on.
Just in case your wondering, I need both sequences opened as to steal some effected clips and transitions for the side screens as well, also make sure I'm locked to sync.
so I don't have to use the timecode window to move each sequence to the exact location I'm working on.
you can also nest sequence 2 (and 3 and 4 a.s.o.) into sequence 1, line it up to sync your "main sequence",
now on any desired position of your playhead, you can hit "open nested sequence" (by default : Shift-T) and you end up at the same frame in the desired sequence.
just make sure the video track of your targeted sequence is activated. (if more are active, premiere will send you to the highest activated track)
So the best way to do this is to use Jim's PIP suggestion, so you have your videos / screens lined up correctly and you can make changes to individual clips, tracks within a nested sequence, Shift-T sends you straight there.
It's not quite ganging two sequences, but it's only a push of a button away and a lot closer to ganging than copypasting Timecodes.