Might be an odd thing to ask but can we get a "nerfed" version of this mod?
That or give us a way to set the amount of items transported per truck in settings for the mod like you let us edit the amount of fuel per truck.

600 items is a bit wild (like moving 600 iron gears at a time). I'd like to imagine the number to make it feel like it isn't a cheated option might be closer to 5-10 items vs 600.

Thank you!

It seems to me that this mod was created to operate on stacks rather than on the number of items.

600 appears when I set all technologies to unlocked in sandbox mode. Even when I unlearned the Cargo+1 technology, 600 remains.
During normal play, this problem does not occur and the counter starts at 100 if that is the stack of items.

Another idea I have as to why you have 600 is that you placed 6 drones in the depot, and each drone adds 100 to the order list (6*100=600).