I would like to make some user profile fields dependent on other user profile fields, for example, right now I have parent 1, a whole bunch of contact info fields, parent 2, a whole bunch of the same fields, child 1 - many fields, child 2 - many fields, child 3 - many fields. I'd like to make it so the user could check a box if all the info is the same for each person, or if there is only one person, and not have to put "N/A" in over and over.
Would this require some other module, or custom field types, or php codiig?