View and edit other players' inventories and enderchests.
Includes player's armour contents and off-hand items.
Includes player's crafting/workbench/anvil/smithing table/stonecutter/grindstone/loom/enchanting table/merchant items and the item held in the player's cursor.
Support for offline players, even for players who have never logged into the server yet.
Auto-reloading of spectator inventories when players relog.