We have provided access to some of the trac.ini fields via ProjectLocker Portal. To access this area:

  1. Click List Projects and select your project.
  2. Click the Edit Service Properties link next to Trac.
  3. Click the Manage trac.ini Settings link

Each setting is listed along with its location in trac.ini. If you'd like anything changed that is not exposed here, just open a ticket and we'll be happy to help.