Copy and paste is fantastic!
It would, however, save quite a bit of time if we were able to copy elements from the showcase without having to name, clone, and load the entire project first. It's a bit much for small elements. If we don't want the project cluttering up our workspaces e have to take a few extra steps just to delete it. It's not the end of the world (obviously) but it's enough to keep me from saving projects as I go along.
As someone who regularly makes my projects cloneable, I don't care if they clone one section or the entire projects. If it's easier, I'd rather they be able to pop in, clone a button, and pop out.