Ender Lectern

Made with 1 lectern and 1 ender eye (and another item for changing channels that I'll explain later).

Every book you put into it instantly apperes on any other ender lectern in a certain radius that is connected to the same channel (Maybe add an item that can make it visible in other dimentions..?).

The book can be editted and taken out from any connected lectern. If someone takes the book out / edits it, the changes will automaticly show up on any connected lecterns.

There will be a slot for an item chosen to reprisent channels. Every channel can contain a different book. Amount of that item in the slot = channel number. This will also limit the number of possible channels to 64 / 65 (Choose yourself if there is a channel 0).

You can uprade the lectern by adding a special item in the crafting recipe (Ender Lectern + This item) that will show you what players are looking at the same book / channel as you (Only if they are using the upgraded lectern too).

Feel free to suggest possible items for channels and upgrades.