1. Is there a way to cancel the player interface to loot storage box? Like pressing ESCAPE or TAB.
     
  2. Code:
    player.inventory.loot:Clear()   -- [lua]player.inventory.loot.Clear()  // [c#]
    (not tested)
     
  3. or just BasePlayer.EndLooting() which technically does the same thing but just checks if the player is actually looting.
    Code:
    player.EndLooting() [C#]
    player:EndLooting() [LUA]