15.02.2011, 16:43
Check where the player stands when he types /enter, and teleport him to the needed position with a new variable set Entered[playerid] = NUM (NUM => index of the place).
When he types exit, check where he is (by looking up for the player's "Entered" index), and set his position back to the /enter position.
When he types exit, check where he is (by looking up for the player's "Entered" index), and set his position back to the /enter position.