Minecraft versions: 1.12.2

Suggestion details: EBWizardry has quite a lot of baubles, each providing amazing buffs to players. But since we live in the world where not only wizardry exists, so high-tech things are frequently required, like putting a Battery or something in the Baubles slot. That undoubtedly makes players drown into a dilemma in which we have difficulty deciding what to equip inside these very restricted slots. So I'm hoping for some kind of feature, or a hypostasized upgrade to let players have independent extra slots for these necklaces, rings, stuff like that.