1.
I know how to make an operator push trolley and load/unload it. That's the easy part.
But... I was asked to animate him so that when he arrives at the queue/processor/anything else we would use in our simulation, he goes, takes the box, puts it on the trolley. Than he continues to push it. When he arrives at the target location, he once again goes right next to the package, takes it and puts it wherever it should lay.
Basically I was asked to make the simulation look "nicer"
2.
The second problem is to make a "trolley train". There are several trolleys linked in a tandem and the front there is a motor trolley that pulls all of them. In that motor trolley there is also an operator sitting.