Easily copy file from one external location to another

I would like to be able to easily copy a file from one location to another. For instance, I opened a Playground from iCloud. Then, I want to be able to copy a file from a git repo I have opened from working copy. It seems that I can do it, however, I’d need to make a copy of the original file in-place in the git repo. Then, I would have to move it. It would be nice if you could do a copy & move at the same time.