Course: Implementing UI for Level Design

Hi
Thank you for the tutorial.
I’ve downloaded the project from the market place from the link provided and I’m stuck in the “Scripting Player Objectives in the Mill” part.
At 11:14 in the BP_GearMachine blueprint, at the bottom of the “My Blueprint”, we can see in the video that there are 2 events from the “Gear Machine” category called OnGearMachineStarted and OnGearMachineInspected.
However in the project, both event doesn’t exist/appear. Was these event created in some previoous tutorial?
I thank you in advance for your help