tracking profile editor to instrument a singleton orchestration possible?

I’m trying to use the tracking profile editor to instrument a singleton orchestration.

To put simply the orchestration is managing a business process between four endpoints.

There can only be one instance of this orchestration therefore the singleton pattern.  Because of this there will only ever be one instance of the orchestration.

My question is… when does BAM decide to move to the next activityID if i use the tracking profile editor for the whole process?

Does it move to the next one when all the data are filled?

Does it move to the next one when the orchestratiion ends?

Can i use the tracking profile editor for everything and then use the BAM api at the end of the master loop to tell BAM to start a new activity tracking?