Mitchell --
If you are asking whether you can prevent team members from proposing new
tasks from their PWA timesheet, the answer is yes. Here is how the Project
Server administrator can disable that permission:
1. Log into PWA with administrator permissions
2. Click Admin - Manage users and groups
3. Click the Groups link in the sidepane on the left
4. Select the Team Members group and then click the Modify Group button
5. In the Global Permissions grid, set the "New Project Task" permission to
Not Allowed (both Allow and Deny are DESELECTED)
6. Click the Save Changes button
Hope this helps.