In this video, I start building a mini inventory system in Unreal Engine 5—the kind you see in a lot of games where you keep a few items for quick access. I show the full flow of selecting slots with the mouse wheel (scroll down to move forward, scroll up to go back), and how the selected slot visually scales up so the player always knows what’s active. I also explain how my pickup system ties into this, where pressing E interacts with an item and the character holds it using a Static Mesh component placed in front of the camera. To keep the inventory clean and expandable, I set up a Blueprint Interface (so I can call pickup logic without hard references/casting) and I move the pickup logic into the Character Blueprint, which is a better place for it. Then we build the HUD widget: five slots in a Horizontal Box, each slot using a Size Box + Button + hidden item icon image that only becomes visible when an item exists. Finally, I create an inventory struct to store item name, icon (Texture2D), mesh, class reference, and the “hold in front of camera” transform—then auto-fill most of that data in the parent item blueprint’s Construction Script. Part 2 is where we actually insert/remove items in the slots.