Holes cut into walls have no center node

[Leo Graywacz]

Was wondering if there was a way to get the holes I cut into walls for pipes in bathrooms for drawer alignment in weird situations can have center nodes to pick up for taking measurements. I cut 3 circles into the wall for the hot/cold and drain pipes and all of them have a node at 9:00 but no others.

I would sort of expect a node at all the quarter hours marks or the center. Not just the one. Is there any way to put a node there or is there way that I need to cut the hole for it to have the node in a certain place.

Or as I suspect, it is what it is.

Thanks.