Add a delay download feature on startup, Stop All button, and individual photo/video delete from 4k. Also auto change name to newest one when changed on instagram instead of having to re-follow same person.

Add a delay checkbox that can be ticked so when 4k is started it doesn't automatically download all photos. That should be optional. Add a stop or pause all button to simultaneously stop or pause all downloads currently in progress. To prevent overloading (which leads to crashes and memory issues). When someone changes their name on instagram it should update to the new name they changed to or there should be an option to update to their new name instead of having to re-follow which means re-downloading the same photos and videos.