You see I don't have a action Save Game Cache without it I think it's not possible
Are you sure? I presently have it on Mac and Windows, and I'm fully updated (not running NewGen, don't know if it makes a difference).blizzard removed this action from GUI last version...
lolor they just took the wrong pill that day
set udg_SomeCache = InitGameCache("Your_game_temp_data")
call SaveGameCache(udg_SomeCache)