[otrs] Is it possible to start a process for an existing simple (non-process) ticket?

Hi all, Suppose I have a process defined via Process Management and I want to activate it for some tickets *after* said tickets are created. Is this possible? Logic: 1. Simple (non-process) ticket is created 2. Agents / customers add articles 3. Agent / customer decides a process must be followed for the current ticket (e.g. approval). 4. PROBLEM: The decider wants to start this process but can't because AFAIK the process must be specified when a ticket is created via "New process ticket" Am I missing something? Regards, Bogdan