I frequently fly in/out EHAM as the Dutch VACC has very frequent events like single runway ops, SRA approaches and the like. During these events, I've seen them assigning as much as 80% of the stands to traffic (that's over 100 stands!), with separate delivery, planner and 2 ground controllers for the ground movements only. Their job is already very demanding right now and they require every pilot to know their way around the airport, standard pushback directions etc. If there would be static aircraft at EHAM, this would be impossible to control, as generally speaking when you come in you'll only discover near the stand that it is occupied with a static aircraft and can mess up the operations when you only ask for a different stand at that time, possibly even requiring you to push back out of the ramp. For that reason, when we don't want to put rules up around static aircraft placement, I think everyone would benefit from the option to enable/disable it like we do with ai traffic, but I don't know how feasible that is. If the structure is provided, I would be very willing to manually tag static aircraft at all those different airports
I think this would be the best solution to keep everyone happy.