The multiple campuses feature allows you to organize who has access to your directory. If you have multiple campuses, Adjace will have a section in "People" for you to decide which campuses are in your directory.
In this church, the administrator only selected member types of their campi. In total, there will only be 29 in the directory even though 29 were selected from membership types. This allows you to decide who is accessing your directory even further!