In GIMP for example if you hit something like CTRL+SHIFT+C you will copy ALL visible layers, not just the selected layer. This can be really handy for, example, moving over the lower half of a chracter’s body so you can re-work the legs, without deleting the old reference. (When they’re all on a separate layer, I mean.)
But I can’t do that here. I HAVE to copy one layer at a time and that’s not very helpful for what I need sometimes. How do I do this? Can I do this?