Thanks for asking.
Here there are two possibilities:
- I checked your staging website (main website is using default WordPress theme) and it seems that you haven't uploaded Pro Theme files and using X Theme and Cornerstone. That's the reason why Header builder option is not showing up. Please upload download Pro Theme file from members area and upload the same using WordPress theme installer. You can take a look at our theme installation guide for more information:
2. Next possibility is that you are developing on a client server and licence might not be attached with your account. In case header builder is to showing up, please make sure that under Pro > Settings > General select Header.
You can learn more about permission manager in following post: