What version Premiere Elements and on what computer operating system is it running?
Not sure of your question, this is what I think you are asking. It is the part about move a bar that I am not sure of.
You have put a Title & Text lower 3rd theme on Video 2 and you want to move it and not the video or still on Video 1.
With the Titler closed....
right click the monitor and select Select followed by the name of the file that you want to move. That action will select the image you needed selected in order to move it. Then, with the mouse cursor, move you selected file in the Edit area monitor.
Please consider and give more details.