With using merchants you can trade with all nations in the world as long as the sending as well as the receiving nation have a port, with the exception of cash which can be send 'wirelessly'.

The Trade-tab is divided in two sections: “TRADE TO” and “RECEIVED”. Use the “TRADE TO” section for outgoing trade to other nations. In the “RECEIVED” section you can check what kind of trade other nations sent to you in the previous turn.

1- Select the nation you want to send the resources or money to

2- Select the transporttype you want to use (research will reveal more options). 

3- Enter the amount of resources you want to send under the appropriate column on the line of the nation you want to send it to.

4- Use these cells to communicate if you are sending any military units to another nation

5- Use this for your own reference

6- Gives an overview of any incoming trades

Available: how many units you have of a transport-type

Used for trade: shows how many of this transporttype has been allocated by you for trade

Use for Military Transport: Shows how many merchants are used for Military Transport

Colonial Trade: Shows how many merchants are used for Colonial Trade

If you want to send something different besides resources and cash, make sure to mention in your orders what you are sending, because this is where the GM will look for this information. As the trade-tab is 100% automated, the GM will NOT check it. Also make sure to remind the GM of it when the units are due to arrive.