Linking fields

Hi Donmik,

I there a way to link fields?
Game Type (Parent category)
Game Title (Sub/child category)

Example my site is about cars and they have following values:

Make (parent)
Honda
Volkwagen
…. more

Type (child/sub)
Honda
-Civic
-S2000
Volkwagen
-Golf
-Passat

A member search for a specific car, let say Honda, he/she search in the make field for honda, in type it only shows the Honda types not other type.

Thank you,

https://wordpress.org/plugins/buddypress-xprofile-custom-fields-type/