Send back the items

"Hai, I'm the Flexsim new user. I faced with fews problem when I try to complete my model. How to reevaluate the items?
In my model, the items will send from source queue to the processor queue and then send to processor based on the ranking. This means that, the items with the lowest ranking will going to process first. I have limited content in processor queue to hold up only 3 items, but the items that send to processor queue is not based on the ranking. What should I do so that the items in the processor queue will send back to the source queue and give the items ranking no 2, 3, 4....go to processor queue. Did my explanation is clear?

p/s: I have attached my model gor your convenience. Please take a look on the itemtyps 2 only (green colour)

Thanks. I'm appreciate for you helping.

B.Regards;
Ellon