This x100It would be nice if it was possible to copy a frame from a sprite with all the frame of another sprite and retain all of the layers regardless of how many layers the new sprite has.
Also copying over a frame from a sprite to a different sprite with another resolution/size without stretching the frame. It looks very bad with stretched pixels. Preferably let us paste the frame in the center or top left of the image and have the options here that GM:S did with this box https://gyazo.com/d766e33ce993d061b2d6f55cf9443a77 or something similar.
I find myself wanting to know the position of a certain body part on one sprite like if I want to draw a gun, but I can't copy the body over because it gets stretched to the new size.
I'm not toooo fussed about the layers thing, I suppose the best solution would be if you copy the frame it makes a single image in the clipboard out of all the layers, rather than just one, but if you want the layers separate then do it manually maybe? I don't know.
But we seriously need all the options in that box, especially "maximal", I've mentioned it many times.