Theme Orchid Store-OS : Featured Product Categories

I am using Orchid Store Theme. I have created my product categories , but when i am going to widgets area and using the “OS: featured product Categories” widget my created product categories are not there in that.

How to bring my all Product categories in the “OS: featured product Categories”

So that i can display my product categories in Home Page

The page I need help with: [log in to see the link]