Modding Trade Goods?

[caravel]

Also, does anyone know how I can disable the auto-merging that the computer does to my troops after each battle or is there a way to do it manually?

Thanks:)

Click the arrow button to the right of the minimap and uncheck "tidy up units after battle".

-edit: for your other other query, have a look at the old numerology thread at the (old) .com http://shoguntotalwar.yuku.com/topic/1701