The trainer has three functions.
The first one is just a little money
The second is the supply of goods to all warehouses.
The third – a lot of ammunition, guns and sabers.
Port Royale: Trainer (+3) Free Download
I advise you to use with the Port Royale trainer: Trainer (money) for those who want to get the most money – just put a pack of a hundred, and squeeze tobacco for sale (from the warehouse).