what i mean is that you need a multiboard and as you said it will affect lot of maps. there would be no space for another multiboard such as in Azeroth wars or DotA. + new people would need to import all the units , new requirements for every units + buildings+ triggers for the multiboard on every map. which means that if he wants to use the oil stuff + import his stuff from his old wc3 map he can't because one of them will replace the other one. it would mess with lot of stuff. also multiboards are visible to all players.