So the mod that has to overwrite the others should be placed on top or on the bottom of the column ? Never wrote it clearly.
Other thing is - "buildings", "data", "battleterrain", etc. appear as release packs when you have "show all boxes" checked. And when you uncheck it, they appear again as mods, being not to be found double in the mod column before that. What does this mean ? Do I have to check them or not ? If they are not checked will they appear in game ?