OK, but that doesn't answer about the tab at the top.
This seems to imply either being on the "Home" tab or the "Sequence" tab.
Clicking on a split where two clips are butted up against one another will join them if they are a single clip that had a split introduced. For example, if you took a 10min clip and split it into two pieces, clicking the split (when double-headed) will join them back together.
This is not the case for two unique clips that are adjacent on a split.
I can take a video of this behavior if you like.
I'm with you there.
Still with you.
It actually doesn't solve or assist the problem at all.
What I need to do is adjust the clip's position in the timeline frame by frame, not the length of the clip. I already have split the clip down to a segment that is the proper length, but I am trying to line that video up with a different audio track, which requires moving the clip's position in the timeline.
I could possibly achieve the same effect by manipulating the in/out of the clip, but that seems waaaaaay harder.
In any other program you would click something and then simply hit left/right to move it left/right (Photoshop, Illustrator, Gimp, Impress, etc)... seems odd you can't do this.