Operators on Multiple Networks

The attached modell uses serveral networks and two OPs to transport the material.The aim, source and the level of aim and source are written in labels on the OP (in case the OP has to travel to a source) and on the item (in case the OP has to travel to a sink).

To improve:

The reset of the two OPs so they do not have to be created every time themodell starts.
The stats of the OPs disappears when the OP is moved into the Queue to be transported.

Overall concept? Is there a more easy solution for travelers on multiple networks?

Any ideas?