If this exist I cannot find it, but. . . .
Would be nice of there was a way in the editor to use the arrow keys to move a selected object in the world, example:
Holding the X key while an object is selected to be able to move the object back and forth or left or right for precision placement instead of bumping the position 1 at a time or relying on the snap feature (which can get frustrating) would also make creating and editing UI so much easier on us.
I use this on other game editors and software (photoshop comes to mind)
Like I said, if this already exists then I am missing it, but if not I would wash someones car if this could get implemented