Better Book Shelfs

This plugin lets you store any kind of book in a book shelf.

You have up to 18 slots to store books.

When this plugin is enabled you can't move bookshelfs with pistons (not even with slimeblocks), because you can't move containers either.

The items in the shelf will drop when you break the block.

You even can lock the bookshelf with a code.

to lock a bookshelf -> open a bookshelf sneaked with a renamed tripwire hook to lock it (the name is the code)
to unlock a bookshelf -> open a bookshelf sneaked with a renamed tripwire hook to unlock it (the name must be the code)
to open a locked bookshelf -> open the bookshelf while holding a tripwire hook with the name of the lock (the tripwire has to be in your inventory (or in a shulkerbox in your inventory), it does not have to be in your main hand)

I hope you enjoy this plugin.