Drag, Drop and Swap During Scheduling

It recently occurred to me that a lot of Music 1 users don't know about this function. This short video is taken from a longer tutorial that was posted on the main website a couple of years back, but you may not have seen it before now and so you may not know about this little function. This drag-and-swap trick is only available when you are editing in the Clock view.  

Music 1steveScheduling, 6th