Greetings, I am doing incremental images each night. Problem is, collection of images is already very big, and I'd like to delete the oldest "snapshots". But I can't delete first full image, neither can I delete some intermediate ones. Logical would be to somehow "combine" them, to produce recent full image, and then keep incrementing on that. But how can I do that? Or perhaps, maybe it's possible to make the schedule do full backup every 7 or so incremental backups? Thank you.