Stateflow chart transient between state by time expired

I have a simple state machine and I need to transition between stage1 and stage2 based time elapsed.

I would like to transition from stage1 to the stage2 after some time is expired (100msec).

How should I set the transition condition?

Answer 1

[Jack Daniels]

I can use "after" event to transition from stage1 to stage2 ... and back and forth