[Closed] dotNet – adding border/outline to a group of buttons

Fairly new to dotNet in maxscript and trying to build some buttons and UI stuff.

My question is, what’s the best way to but a border or outline around a group of buttons? I tried adding a label and then putting the buttons “on top” of the label, but then I can’t click the buttons.

Here’s an example pictures I mocked up in Photoshop:

That white outline is what I’m after.