if you want i can send how to make one using tuske so you will get the idea and then you could make it without addons

 

Code (Text):

1. command /container <integer>:
2.     trigger:
3.         if arg-1 < 2:
4.             open virtual chest inventory with size 6 named "Container %arg-1%" to player
5.             set {_slot} to 0
6.             loop 54 times:
7.                 set slot {_slot} of player's current inventory to {slot.%arg-1%.%{_slot%}.%player%}
8.                 add 1 to {_slot}
9.            
10.            
11. on inventory close:
12.     if event-inventory's display name contains "container 1":
13.         set {_slot} to 0
14.         loop 54 times:
15.             set {slot.1.%{_slot}%.%player%} to slot {_slot} of event-inventory
16.             add 1 to {_slot}
17.  
18. on inventory close:
19.     if event-inventory's display name contains "container 2":
20.         set {_slot} to 0
21.         loop 54 times:
22.             set {slot.2.%{_slot}%.%player%} to slot {_slot} of event-inventory
23.             add 1 to {_slot}