It’s certainly possible but probably not the right tool for that job. UMG is going to be the recommended way to do game UI from inside the editor. We’ve talked about having a draw sprite to UCanvas and a SSpriteImage Slate widget as ways to render Paper2D geometry elsewhere (the advantages there are mostly the ability to more tightly define render geometry than Slate’s brush system allows natively), but nothing is set in stone right now.
Cheers,