Shulker Box Backpack
Just as the title says, this add-on will make you able to use shulker boxes as a backpack!

Setup

1. Install the add-on to your server.

2. You are done!

Helpful Information:

• You can rename the Shulker Boxes to what ever you like. Using an anvil, or even a item rename tool.

• The Shulker Boxes show what items are inside of them.

• This is really useful for a lot of different server types. Like RPGs, survival and gen servers.

• Keep in mind that you will no longer be able to place down Shulker Boxes. Since you have to right click to
  open them.

Plugins:

• Skript

• SkBee

WARNING: Not compatible with the plugins TuSke and Skellett.