I needed a register component that would create two forms and than each form assigned to the registered users to one of the groups created, one form for the sellers automatically assign them to the group of sellers, and another form for users which would assign to the Users group.
This component do that and simplified my work. Now I don't have to review each registered user and assign manualy their groups.
Forgive my english but is not my native laguaje :P
Thank you very much.