How to save a Simulation Scenario in OBPA11g

Hello,

I have been trying to save a Simulation Scenario  of the process I draw, but I can't.

I loaded the process for simulation and clicked start.

"The Start Simulation Options" dialog box supposed to be displayed, but I got the massage like below instead of the dialog

    No simulation scenarios are defined for the current model. Current model name is "process name"

As long as I checked, It seems like no way to save a Simulation Scenario of the processes I modeld.

Does anybody know how to save it?

In fact, the Simulation Scenario of the process which already existed when I installed the tool could be saved.

A simulation tool is BPA Suite11gR1 which is based on ARIS 7.0 SR 6.

Thanks,

Yusa