Yes, no secret here; for a program called "Metrosimulator", the option of platform doors is something I am really missing. It would add a level of challenge, and it would look really good too. Rijndam would get it on the Airport Shuttleservice, and Glasgow on all stations (as Glasgow is already planning to install them in a few years) in a modernised version.
I have a few ideas about how it could be done (also in the sense of determining which platformdoors to open), and I would like to make the objects for it, but you are the only one who can add the necessary variables to the programming in order to make it work. I would really like to discuss my ideas about that, if you are willing to add the option....
So you now have a 11 car train with Jacobs bogies. Perhaps you could alter the lengths a bit, creating a 10 car train of the same overall length. This 10 car train would then consist of two identical units of 5 cars, each with a cab on one side and an articulation on the other. That way, you can take both halves into the depot one at a time. A bit similar to the Amsterdam M5 trains; they look like a single 6-car train, but in reality they are two 3-car units coupled together. Walking trough it, you can only see you are entering another unit as the unit-numbers near the ceiling ends in the interior change.if you have 1,4 meter wide doors at 5,5 or even 5,6 meter interval, you can fit 22 doors on 120 meters of platform. Using Jacobs bogies that leaves you with 9 middle cars of each 11 meters and two front cars of 13 meters, giving 125 meters of train. This will complicate things at the Kleiweg depot though, they can't fit a 125 meter long train there.
Glasgow is using that method too; the new Stadler trains are two identical units coupled together (after introduction of the new trains and retirement of the current fleet, platform doors will be installed);
(Yes, there are no driver cabs on this drawing. However, for the first few years, temporary driver cabs will be installed, as Glasgow doesn't plan to switch to automatic operation until the platform doors are in place, which can not be done while the old trains are still running.)