I need to be able to have an initial “setup” time when a vehicle arrives at any site. Think of it as finding a car park or dealing with the paper work. It is kind of an “activity” level constraint although it only occurs on the first activity on the site if multiple activities are scheduled. So regardless of how many activities are scheduled for that vehicle at that site at that time there will be just one setup time added at the start.
Would it be possible for that approach to added to the main version please @stefan . Alternatively is there another way to provide for this ?