Custom registration field that put you in a special usergroup?

[Goodman_2020]

Hello,

I would like to add a field in my register page, where you chose an option (between option 1 and option 2). If the user chose option 1, once i validate his registration, he is part of a usergroup1 (registered users) with his own permissions. If he chose optionn 2, he is registered in another usergroup that i will create, with other kind of permissions.

I know how to add a field to the registration page, but i don't know how to do the next steps, somebody could help me please?

Thanks

[Opserty]

<a href="https://vborg.vbsupport.ru/showthread.php?t=82992&highlight=Profile+Usergroup " target="_blank">Add User to Primary Usergroup Based on Value of Custom Profile Field</a> You might be able to use that.

[Goodman_2020]

thx (it seems complicated to set). Do i need the second user group too ? https://vborg.vbsupport.ru/showthread.php?t=82993

p.s: Just one "choice" will redirect the user into a special usergroup, one will be redirected into "registered users" ...does it do it by default with the mod you gave me?