Add a Current Timecode Button to the comparative view

Hey guys, 

it would be awesome to have a button next to the reference viewer in the comparative view to set the actual position of the playhead as a new reference frame. Maybe you can safe these positions and show them as small thumbnails under the reference viewer to easily jump around between different reference frames. 

It's a real payne in the ass to jump through the whole timeline to copy the TC to the reference frame and then losing the actual position where I stopped working. 

To have something like that would really help in the color correction workflow.