The only way I know of doing that is to shrink the Radio Box. This will cause it to move the last item to the first place on the next line. Like a line wrap. I don't know any other way to do this. And I don't know of a way that you can move the button to the right of the second line.
Available on demand!
Missed SAS Innovate Las Vegas? Watch all the action for free! View the keynotes, general sessions and 22 breakouts on demand.