When an arc is created, a "direction" of it's center can be changed from "above" to "below" (see the video). But when some additional geometry is created, I can't find a way to do it. When I have to do this, I have to delete an arc and draw a new one - this creates a face with another ID, resulting a missing mates, references and other issues. Is it possible to change the direction of an arc in this case? See the video: