I think you can use two variable to check when event finished moving.
(https://rmrk.net/proxy.php?request=http%3A%2F%2Fpuu.sh%2F7U14U.png&hash=3ff6e7dd8216a8a61567f92202a0afdf88442a87)
(https://rmrk.net/proxy.php?request=http%3A%2F%2Fpuu.sh%2F7U161.png&hash=1b264c8bb597140c70f762dd046401d4659f9995)
or you can use script:
$game_map.events[???].x == 5 and $game_map.events[???].y == 7