/loginspots add
adds invoking player's current position as a login spot
/loginspots clear
removes all login spots
/loginspots tp
teleports invoking player to his assigned login spot (if assigned)
/loginspots list
lists all currently existing login spots
/loginspots set-min-y
sets the min-y
if the player's position is at any tick below the min-y, the player will be teleported to his assigned login spot (if he has one)
if it's used from the console, min-y is a mandatory argument
if it's a player, min-y is is optional, if it is missing, the