I am adding a field which will allow editors to control text placement over an image from a set of pre-defined choices. At the moment I have it in a dropdown, but feel there must be a more attractive interface.

To understand my request, the choices I am giving them are:
° Top / Right
° Top / Center
° Top / Left
° Middle / Right
° Middle / Center
° Middle / Left
° Bottom / Right
° Bottom / Center
° Bottom / Left
The button group comes close, but looks to only support a single row or single column. What seems like it could be perfect is a 3×3 grid of buttons so they visually can see what section of the image is chosen.
Wondering if anyone has any suggestions for this?