It would be great to have lessons/days automatically shift when they are dragged and dropped, instead of being replaced.

Right now, I'm finding that when I move a lesson to a new date that has a lesson already on it, my old lesson gets erased, or rather replaced by the new lesson. The "How do I…" sections says that if we drop it on the previous lesson, the lessons will be switched, but this has not worked for me. It would be great to be able to just move a lesson to a new day by dragging, and the other lessons would shift one to the right or left to adjust so that I can move some lessons around in the unit without fear of losing my work. This would definitely help me plan better! Thank you!