LPJ

+1 Yup agree with what eobet says. Based on my experience, you can technically select all (ctrl + A) those layers, but it only collapses those groups that are visible. Hidden groups that have been expanded were not even included in the select all (ctrl + A) list. (I'd also have to manually click through to hide them) Would really help to be able to set a shortcut for this too.

Working better now! Previously when I'd select an artboard with "insert inside selection" selected, and then drag and drop an image from file explorer, this would simply sit on top of any artboards on that file, rather than "clipping" into the selected artboard (with "insert inside selection" selected). It's so much better in this aspect as I work with edited files from Affinity Photo a lot. Thank you for this update!