There are two questions:
1. How can I batch three units together to be processed at one processor then unbatched after processing? Essentially, this will apply for the majority of processors I have.
2. How can I only allow a total of 36 units to be processed at a time? I would like the units waiting their turn in the beginning until there is less than 36 units already being processed throughout the system. The starting point where the units may wait is in Queue1 and after a unit finishes processing at Processor5 then another can enter the system.