Good news! There is nothing you have to do or request to add a Matter in TIQ.
TIQ synchronizes with your PMS (Project Management System), whichever it is. So just make sure that the project was successfully created following the usual procedures of your company, and the Matter will become available in TIQ within a few minutes.
In the same way, when a Matter is removed from your PMS, the Matter will also be archived from TIQ within a few minutes in the next TIQ-PMS update. Archived Matters will no longer be available for users. But don't worry, all the confirmed entries assigned to that project will remain linked to it and visible for reporting purposes.