I would love to be able to select, drag and drop several tasks or subtasks in the calendar view to bulk edit their timeframes.

Example of use : I planned 3 tasks one after the other in the morning but need to postpone them all (same order and duration) in the afternoon (and maybe repeat for the ones that were planned in the afternoon to the next day...)

Right now, you need to rearrange them individually, it can take lot of time while you're trying to win some by scheduling everything ! :/