If it wouldn't be too hard to implement, it would be very nice to have an opportunity to add items with predefined components in creative tabs menu with resource pack, in a similar way like for example MoreCreativeTabs mod did that. It would be very useful for both — datapack creators who will be able to add custom items in a very convenient way for players in creative, and average players who can add important for them items (like swords with enchantments or chests with items) to one of the tabs for quick access.
If it wouldn't be too hard to implement, it would be very nice to have an opportunity to add items with predefined components in creative tabs menu with resource pack, in a similar way like for example MoreCreativeTabs mod did that. It would be very useful for both — datapack creators who will be able to add custom items in a very convenient way for players in creative, and average players who can add important for them items (like swords with enchantments or chests with items) to one of the tabs for quick access.