The ability to specify the port type for stores (bulk or not). And add a couple more ports.
It's really inconvenient to ship food to stores right now. Several of my stores only accept single-piece items. But I can only connect one conveyor belt, so one item is constantly blocking the other. The same problem applies to mills; they only have one entrance for bulk products. (There are probably other buildings with multiple recipes and a single port; they need to be fixed as well.) I'd also like more ports for plantations, with the option to choose the port type.