Hidden Items in the Creative Menu

The Hidden Items mod allows you to get hidden items without using commands.
This mod can work in servers for OPS only.
The mod allows you to get the following blocks:
Command Block
Repeating Command Block
Chain Command Block
Minecart with Command Block
Light Block
Barrier
Structure Void
Uncraftable Potion/Arrow/Splash/Lingering
Debug Stick
Jigsaw Block
Structure Block
Petrified Oak Slab
Map
Written Book
Knowledge Book
Enchanted Book
Sculk Sensor
Bundle
Mob Spawner
Suspicous Stew

thats all the mod offers, i prob will make updates to the mod eventually, but who knows!