Ldap group and fields

Hi, Sorry, perhaps the question is somewhat silly, but I don’t understand what does mean “field” in this context, is that an “ldap attribute”?. I mean, I don’t understand what ldap.groupDescriptionField, ldap.groupNameField and ldap.groupMemberField despite I’ve read documentation at a few times. For example in our schema we don’t use group at all. We use the attribute eduPersonAffiliation and I’d want to be those classifications, I mean employee, student, alumni, etc.

But I don’t know how to do it!

Thanks in advance!