Enter WorldGuard region (REGION_ENTER)
This activator could be defined only in bound with a region created using plugin WorldGuard. To create activator of this type you need to use command:
/react add REGION_ENTER <ActivatorId> [<World>.]<RegionName>
REGION_ENTER activator is activating when player enters a region. It activates only one time. When player leave region and enter it again activator will be initiated again too.
ReActions uses a format "[<World>.]<RegionName>
" to determine region. You can skip the world name if you region located at your server main world.