[Zope] ZMI and acl_users

I am trying to find a sane way of managing users in a stock acl_users object using the ZMI. The ZMI seems to lack the normal niceties (find, select all) for selecting users. Is this by design or is there some logical reason for this lack of ability to select and manage users? Is there some way around this lack of function? Perhaps a different user folder? The lack of function is beginning to drive me up the wall. I have 1500 users I want to delete, and it seems the only way to do it is to click on each of the 1500 entries individually. Maybe I am missing something?