dragging a clip in the timeline and inserting it elsewhere in the timeline without leaving gap

I'm something of an expert in premiere pro but helping a client do some preliminary work on a project in premiere elements.    What he wants to do is rearrange the video only clips in the timeline without overwriting anything and without creating a gap in the music track...  The simplest way I can figure out to do this is to drag (on a mac) while holding the option key, which moves the clip inbetween 2 clips but leaves a gap where the clip was previously.  Not a big deal to just control click on the gap "delete and close gap"  but wondering if there's a simpler way to do this...

Could do a cut and paste insert but that creates a gap in the music...  If there's a way to lock the audio track, that would work...  but doesn't seem possible..

Thanks.