The Button Group field has the option to display the buttons either horizontally or vertically. I would like to be able to display them in a grid.

My use case is for setting the background-position of a background image, and a 3x3 grid with icons will look a lot nicer than the select field I am currently using.

I could use 2 Button Groups, one for horizontal alignment, and one for vertical, but I think a grid would get the purpose across much better.