Hello. First of all I need to sorry for my English because it is not my first language and I can make some mistakes, and I'm sorry for them. So, my problem is that I can't find the trigger or that trigger doesn't exist. I need tigger when unit, owned by any player e.g. by red and this unit entering region easy and then it add this player to player group named easy or trigger who will send message to players in region and it is not like in the RPG you are entering to the city. I will create Tower Defence and when you lost the unit it will show standard text you have to lose some unit or something in that style but It can't send to all players and any concrete players, just to players located in the region.