Extended Creative Inventory

Extended Creative Inventory loops through all registered items on first load. When an item doesn't have an item group (which determines the creative tab it's in), it adds that item to the "Extended" item group. Works for the vanilla items such as Mob Spawners and Dragon Eggs, but also for modded items.

   All available config options:

extendedItemGroupIndex  default 4, min 0, max 100
The index of the 'Extended' creative tab. Can be changed if another mod already uses the default fifth spot (index 4).

The new tab called Extended:

Contains the following items in a vanilla game install:

You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge or Modrinth ecosystem.

Serilum.com contains an overview and more information on all mods available.

Comments are disabled as I'm unable to keep track of them across so many separate mod pages.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!