Hi everyone ! I'm making a plugin who teleport the player to a game when he hit a sign. To know how many players are in the game, I use an arraylist who store player (I'm okay with memory leaks, i will fix that later) and update every sign. This is impossible for me to create an arraylist for every signs because i don't know on many signs there are. This is possible to store every player in the same arraylist (instantiate ?) ? How to do this and how to call the right one ? Thanks.