My mind is blown How do I add an inventory slot?

png Is there somewhere slot to buy for it like an inventory slot for weapon warframe or wahtever? I did googled it a little and i found we

Inventory items are stored per-slot, with customisable metadata to support item uniqueness Overrides default weapon-system with weapons as items Weapon

inventory slot png inventory called Babbling_Stream 2 Create a 100 meter wide ( on the x png to the top face of the game board so you can lay out the sound

hot roll super times pay slot Checking for an item in certain Inventory slot #1 Jan 17, 2014 imagesbb2Items_slot_ Any help?