There is no quest state trigger unless you make one by yourself. Instead you can go to questmanager.cpp and take a look at this function:
void CQuestManager::SetEventFlag(const string& name, int value)
Hi, here is my question: How set a notice when a game flag is changed?
quest test1 begin
state start begin
when 8027.kill with game.get_event_flag("event_test1_drop") == 1
when that "event_test1_drop" == 1 some notice pop up on global chat, like: "Event Test1 is now enabled..."