Well yeah, what I mean is, a movement similar to forwards/backwards, except instead of moving an object back and forth on the object's angle, it moves it side-to-side perpendicular to the object's current angle. So if the object is facing right, it moves up and down, if it's facing up, it moves right and left, etc.
It just seemed odd to me that there's a backwards/forwards option that takes into account an object's angle, but no side-to-side equivalent as it looks like a natural next step.