Change values in Join

Is it possible to change the values in "Join"? For example, what if I wanted to change the vales of the radio buttons Male or Female to something else? How would I change those values? How would I add new values?

You need to do a little bit of reading to see how to do these things.  The join form builder is admin, builders, Profile Fields.  That form is several actually.  You also have the profile edit; with views of member and admin, then the profile view, with views of member, admin, and guests.  You can add or remove blocks for each so that the member will see one thing and the admin will see another.

I suggest looking at the HELP above and also searching the forums for how to change the join form.

one other thing to add to what GG  said - some of those values - such as the gender - is in a table in the database which can be accessed in Admin - Builders - Predefined values

thank you