How do I add a gun/item into an item granter?

I’m not sure how to add a gun into an item granter. Im new to UEFN so I’m not really sure what I’m doing. Many thanks

Step 1. Select The Item Granter

Step 2. Press the + in the Item List

Step 3. Press the expand arrow on the item you added

Step 4. Press the arrow to select a Item from the available items