BlockLocker guide

Make sure BlockLocker is installed. Open up the config file of BlockLocker (not the config file of BetterEnderChest) in plugins/BlockLocker/config.yml. Search for the protectableContainers setting and add ENDER_CHEST to the list.

The list should now include ENDER_CHEST, like in this example:

# All types of containers that can be protected.
# All material names can be found here:
# https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Material.html
protectableContainers:
- ACACIA_FENCE_GATE
- ANVIL
- BEACON
- BIRCH_FENCE_GATE
- BREWING_STAND
- BURNING_FURNACE
- CHEST
- DARK_OAK_FENCE_GATE
- DISPENSER
- DROPPER
- ENCHANTMENT_TABLE
- ENDER_CHEST
- FENCE_GATE
- FURNACE
- HOPPER
- JUKEBOX
- JUNGLE_FENCE_GATE
- SPRUCE_FENCE_GATE
- TRAPPED_CHEST
- WORKBENCH

Type /blocklocker reload or restart the server. Ender Chests can now be protected and shared.