In this follow-up tutorial you'll learn how to use 2 (or more) items before the Player can make a change in the game, like having to gather 2 keys in order to open 1 door. This is a continuation of the "Use Keycard to Unlock Door" tutorial, where I in detail went through how to set up the Inventory Interface and key + door/light blueprints. Watch that tutorial first if you're new to using inventory interfaces, here: • UE4 Tutorial | Use Keycard to Unlock ...