I'm fairly new to pex. How would I keep donor ranks and staff ranks seperate?

I'm trying to have staff be able to have donor ranks. If I set a non-donor to a staff group, the permissions of staff should be added to them. However, I do not want the permissions of a donor to be overwritten, if they happen to be added to a staff group.

How do I make sure the staff group doesn't overwrite the donor's permissions, while also not giving staff permissions to non-donors that become part of a staff group?

(I'm assuming you're using PEX 1.x as I write this reply.)

Terminology is important, in this case. If you set a user to a group, they are a member of only that one group. If you add a user to a group, they are a member of more than one group.

The following command removes the user named "Stormbow" from his previous group, and puts him into the group named "Staff":

/pex user Stormbow group set Staff

The following command keeps the user named "Stormbow" in his previous group, and adds him into the group named "Staff":

/pex user Stormbow group add Staff

You can read more of the PEX commands on the PEX wiki.

Thank you!

You're welcome. :)