Kolab 3 UID

[schmerold2 at gmail.com]

In our environment, we find that it works best to have a three letter uid

I have installed Kolab 3, it insists on using surname for uid and nearly 
as bad (for us - people change their names from time to time) it uses 
"name^uid" in the IMAP directory structure.

Is it possible to specify our own uid and to use that as the source of 
the directory structure?

In other words, abc's messages would be stored in:
  /var/spool/imap/domain/e/example.com/a/user/abc/

We're running Centos 6, vanilla installation:
   yum -y install kolab
   setup-kolab

There have been a couple references to the first part of this issue in 
the archives, answer seems to have something to do with 
auto_fields_admin_rw value in kolab.conf, however, I have not found 
documentation telling me what to do with this value or where to insert it.

Nice job on Kolab 3, I am looking forward to working with it.