Radio Buttons without NSMatrix

So with NSMatrix not being a part of Xcode anymore, what’s the recommended way to implement radio buttons? The docs on NSMatrix say:

so I don’t want to do that, but I’m not exactly sure what they’re talking about on how to implement the new way. The docs for NSRadioButton of course say:

Sigh.

found it (here amusingly via google as opposed to internal search)

just have to have all the radio buttons you want in a group pointing at the same action handler.