Hi Marc, so at first I was thinking you meant something that would just change the display of an object only so it drew over top of another object. So I was thinking of that for a little bit.

But now that I read your message again I think you mean moving the object like Transform > Move is that correct?

Would it be for moving curves only?

Maybe if you select both the curve and another surface or solid it could move the curve above that other object or if you selected just curves it would move it above everything?

- Michael