You may want to demote your existing Project Organizer or Workgroup Manager to Workgroup Member. To do this:
1. Go to Workgroup Participants page
2. Check the check box to the left of the participant you want to demote
3. Click Set Permission > Workgroup Member
After demoting an existing Project Organizer/Workgroup Manager to Workgroup Member, you lose project manager access to all models in the workgroup. If you plan to restore Project Organizer/Workgroup Manager access at a later date, you can make a list of the affected models before demoting.