Thank you very much for your help, though this does not help me solve my problem, i'll try to explain it a bit better.
in my model, a passenger (parent entity) arrives at a separator object with one or multiple batched entities (bags), these then separate from each other. to represent the real system, a tray should also be available to put the bag on (this should be available before the separation starts), i modelled the tray as a vehicle because then i could model the "need for the tray to be available" as a secondary resource. After the separator the tray (with bag) should move on a conveyor through the system, and at the end the tray is taken back to the beginning of the system and the bag leaves the system. so the vehicle does not take the bag to the conveyor, but rather transports the bag on the conveyor.
I didn't know how to model this with the tray being represented by another type of object, therefore i choose the vehicle object.
I added a simplified version of the part of my model (of the part where i have issues) here, what i would like is that when the tray/bag move through TransferNode 1 (and/or 2) that the bag(modelentity) stays on the tray (transporter).
VehicleThrough.spfx