I've noticed that if you retrieve any user groups from an LDAP server, you lose any direct assignment of groups which you have made in Quickbuild itself. It would seem to me that It would be somewhat more useful to merge together both sets of group assignments.

This is especially useful, because most people who will administrate quickbuild will not have rights to add/modify groups in their LDAP/Active Directory server. However, they would like to take advantage of some of the groups which have already been setup in those servers, and setup some permission groups locally.