MultiSlot aka General Modslot Generator (GMSG)

mod slotElytra Slot. Adds accessory support to the elytra so you can fly and wear chest armor at the same time. Formerly known as Curious Elytra and Elytra Trinket.Elytra Slot. Adds accessory support to the elytra so you can fly and wear chest armor at the same time. Formerly known as Curious Elytra and Elytra Trinket.