Greetings
I done a boat with 4 slots, the problem in the route menu is this :

NW Island A : load 25t item 1
NW Island B : load 25t Item 2
OW unload Item 1 & 2 on island C
But is not possible, after select the first unload* every other options become unavailable, I cannot select the second button for the unload, the quantity of the items to unload or another island for unload it, if i don't want unload everything on the first island.
What is the sense to have a boat with 4 slots if I have to use 2 boats for make the trade?

2nd problem there's no mode to put 1 boat to escort another if the route is from the 2 worlds.

* I cannot choose the item to unload, the game put in unload the last item selcted to the load list.

Sorry for my bad english. Best Regards.