Thank you Norbyte for your quick and useful answer, and also thanks a lot for developing great tools. I'd like to ask 2 other questions if i may :
1: if i follow your instructions and just drop the modified TreasureTable.txt in the right folder, will it work on existing saves (I suppose i will have to create the required subfolders, as there only is an "Asset" subfolder in DivOS\Data\Public\Main ATM).
2: Do i have to activate anything under the "Mods" item in the game main menu ?
And kudos for your next editor plugin.