Confused about the editor

By ✨ArtBandit✨

I could of sworn that like 5 years ago you could copy a frame from one animation to another, but it seems that doesnt work anymore? Im assuming it was removed to prevent theft but is there any way it could be kept if your trying to copy your own animation? I want to combinde https://drawn.digifi.ca/play/jj4utu with my main botc file but I cant copy it over! I really dont want to have to redraw every frame so i just wanted to check here to see if there was a way around this? ty!