- Hover over Website in the top blue bar menu of your nation.
- Click the website that will use the Mega-Theme or click Add new site + if you need to create a new one.
- In the website menu that appears, click Theme.
- Click Switch to a custom theme in the second-level website menu.
- Click the switch to button next to your Mega-Theme, which will be named [Your Organization Name Here] Mega-Theme.
NOTE: You will have access to the theme's files by going to Theme → Files.