Thanks, I didn't know that. I'll check it out.
The use case is that I'm developing a system that could accomodate any workflow (based on Petri Nets) and some workflows may require that a number of users perform an action before the state changes (i.e. a request cannot be considered approved until all approvers sign off on it). The number of approves will be dynamic, which means I can't simply hardcode N transitions into the workflow where each of the N transitions is an approve transition assigned to just one user.
