I've just spent plenty of time switching every slot image from one project to another so I was going to post this idea as a suggestion here, luckyly I checked trello first.
I read on trello that you are thinking about implementing drag and drop images on slots in order to "switch" them, wich is a great thing and saves a lot of time. My question is, when you are switching images that also are switched as a raster animation inside some of the project animations... will you keep those image change keys if you have switched all the images from the slot?
I don't know if I explained it very well but I hope you can understand.
Thanks in avance!