[VX ACE]KHAS' PATHFINDER: HOW TO DETECT IF EVENT FINISHED MOVEMENT

How can I check if event had got to end of the path using Khas' pathfinder? I'm using it along with proximity detection script to implement stealth mechanic in my game and after reaching end of path I want them to start battle using default battle system. However I don't know how to detect if event reached end of the path. Any help?