How do I model an event subprocess with a non-interruptive message or timer start event?

Hello,I am currently trying to design some process BPMN2.0 compliant.I need to model an event subprocess with a non-interruptive message or timer start event. I couldn't manage it with bizagi. It seems that the only possible start event for an event subprocess is a interruptive message. So is this even possible ? if not, this is unfortunate cause at the business level, this is really usefull.br,Leslie