So it seems as though I have to have 2 different forms on the same page, one that will trigger the 'update to 0' then the other that will trigger the 'selection' of the theme. Is there a way to have it simultaneously run together? As it stands right now, all I can think of is that there would be a 'clear theme' button that would reset everything to zero. Then they would have to select what they wanted.
What I really want is that if they select #4, then change their mind and select #2, that it is just one fluid move. I'm just not able to wrap my head around the dual updates to make this happen fluidly.