I have created a new attribute for a user as we are migrating from LDAP user management to Active Directory.  The new attribute is called uidOld - what I am trying to acheive is when the user attribute has data added i.e. Will (like the "member" in groups) I want the data to also be added to the group attributes.  When I add the uidOld to groups it doesnt populate wiith the data.  I beleive that i need to link the attribute so that the data populates in the groups attribute as well as the user attribute.

I cannot find how to do this, any help would be most welcome.