[xwiki-users] Hide buttons in AppWithinMinutes solutions

Hello all, Is there a way to hide "Preview" and "Save and Continue" buttons in forms created using AppWithinMinutes? I tried hiding them via CSS extension, using Display:None; but a specific button is a bit more difficult to get a CSS handle on since they aren't generated with an ID tag.. I suppose I could hide it using JavaScript, but I'm trying to avoid that if I can.... Thanks in advance