on rightclick on ender chest:
    cancel event
    open chest with 6 rows named "&9&lEnderchest" to player
    wait 2 ticks
    loop {enderchest.%player%::*}:
        set player's current inventory's slot loop-index parsed as integer to loop-value
on inventory close:
    if "%inventory name of player's current inventory%" contains "&9&lEnderchest":
        set {_i.%player%} to 0
        loop 54 times:
            set {enderchest.%player%::%{_i.%player%}%} to player's current inventory's slot {_i.%player%}
            add 1 to {_i.%player%}
command /enderchest:
    permission: wiekszy.enderchest
    permission message: Brak uprawnien
    trigger:
        open chest with 6 rows named "&9&lEnderchest" to player
        wait 2 ticks
        loop {enderchest.%player%::*}:
            set player's current inventory's slot loop-index parsed as integer to loop-value
            
command /ec:
    permission: wiekszy.enderchest
    permission message: Brak uprawnien
    trigger:
        open chest with 6 rows named "&9&lEnderchest" to player
        wait 2 ticks
        loop {enderchest.%player%::*}:
            set player's current inventory's slot loop-index parsed as integer to loop-value