Ok, unless I am blind...which is quite possible... the only way I can see to change the battleback is to go into tileset and make all maps created with that tileset have that specific battleback...well, i would like the last boss to have a special battleback but I dont want to change the tileset. Is there a way to change the battleback, perhaps through the 'script' option in event commands? I was thinking something like:

class Game_Map
def battleback_name
battleback_name = '050-DarkSpace01'
return @battleback_name
end
end

which doesnt work haha any thoughts?

Event Tab 2 "Change Map Setting"

*cough* ...thanks haha guess i'm blind