I personally have different fleets supplying my warehouses. Either set in the port itself or inside the supplying trading fleet.
There should be a feature to set a limit of how many resources a warehouse should have.
Example:
Port A has a limit of 20k cotton. Fleet Cotton keep supplying cotton until 20k is reached. From that point on the fleet sells the cotton, until there is less than 20 again.

Would be something to help avoid situations, where warehouse got filled with 100k cotton but only has 2k tools.

+1 also a good idea lol

+1

I like that idea. I'm not sure how hard that would be to implement, but i think it would be useful. sort of like the option to choose what resource your ships load from your warehouse

+1 i think ive heard of this before it would also help if you usually use the port for building ships and then you get a hideout but you don't want to have to much tobacco or food (ive had these problems) it would help alot in multiple ways

This is needed indeed. It should not be too hard to be implemented. Approved.