Advance to the specified target step. Target step can be in any state, even a completed state. The specified step is the Ongoing Step. Its state is marked as ON_GOING. If the list step itself hasn't started, it will be started. Otherwise, the ongoing step is marked as COMPLETED.

void AdvanceStep(
	IStep step
)

Sub AdvanceStep ( 
	step As IStep
)

void AdvanceStep(
	IStep^ step
)

abstract AdvanceStep : 
        step : IStep -> unit