Dumping at Mine(d) control towers

right now you have to assign a truck directly to a loose storage for it to dump stored material. would be nice if that's also done by trucks assigned to the mine control

Currently with Advanced Logics you assign all of the trucks in the tower to empty into specific loose storage.
Then you would assign other trucks to move from those storage to other places that need it.
This was done to speed things up and make the whole process more efficient with the direct result of making the vehicles less busy.
It works fine this way.
I vote no for your suggestion.

and why would the trucks have to be empty on their way back into the quarry?
after they dropped off what ever you are mining why would they not take dumping material with them, dump and go to the excavator?
that's called efficiency