Extra Slot Metal Sonic [Sonic 3 A.I.R.] [Mods]

extra slotI want to put on wehts but i don’t know how to open the extra slot menu, i swear to jesus i tried everything i have no idea how to open it can someone please help? This topicMore inventory slots dedicated for equipment, food, ammo and misc items. Extra utility slots. Quick slots. Custom slots API. Player inventory resize. Gamepad friendly. Slot obtaining progression.