Well yes, our product was designed to do many things such as this. However I’m not quite sure what you mean by sorting radio buttons. Radio buttons are objects to be placed. I’m not quite sure how you would sort an object. Maybe you could further explain yourself, then I could help you out.
Yes this is very possible.What I would suggest is using a table to sort your buttons. Here you can hide expired dates with a simple branch behavior hiding any date past xx-xx-xxxx??? You can choose how to sort your table when you set up the table. I would set up the behaviors to take place upon form open.