problem on movements

hy all

I have problem regarding the movement of operator and trolley.
i have used a logic which moves simultaneously to carry load.

the problem is both trolley and operator move from queue 5 - queue 6. now after unloading it will go back to its original place.

again for next process operator will load products to trolley at queue 5 but it is not happening like that automatically the trolley is travelling to queue 6 and it is unloading it to queue 7.

Actual process is trolley will be handled by operator 12 between q5 and q6, but not to q7.

i have attached a model of please look at it.

thank you