It would be awesome to be able to group a bunch of layers in a folder and then transform them as a group. This would also make it easier to deselect a bunch of layers at the same time).
A “deselect all layers” button or “Solo layer” shortcut would be useful (for example, two finger tap or quick side swipe).
For example, I was making a Halloween skeleton. The fingers had a lot of bones and I wanted to keep the fingers grouped (not combined into a single layer). It would have been nice to select a layer group with all the bones of the hand together.
Anyway, keep up the great work! This is my new favorite app on iOS.