insert new state in a an existing process template
Setting up a new process template is relatively easy, however as a project and a team grow it is very coming to be in a situation where a process state diagram needs to be updated and new states inserted, removed, or reordered. I find this happens mostly within the User Story/Backlog and the Test Case diagrams where we start in Agile and then migrate to Agile + Waterfall. Agile for development, waterfall for validation and release., When this happens, I find the need to insert a few states in between existing states. At the moment, this is very doable, it just requires manual editing of the XML file for the state diagram. It would be nice if the designer supported this.
The TFS Power Tools include the Process Template Editor to edit the workflow with a visual designer: http://visualstudiogallery.msdn.microsoft.com/f017b10c-02b4-4d6d-9845-58a06545627f