Create a new HTML file with a Bootstrap starter template using file menu or Ctrl-Alt-B.
- Under main menu select Help > Show Extensions Folder
- Git clone this repository inside the folder user.
- Under main menu select File > Extension Manager...
- Search for "Boostrap Starter Template
- Click "Install"
- Use "New Bootstrap Template" on file menu, or
- Press Ctrl-alt-B
Theme used from screenshot: Raven
The HTML file is a duplicate of the starter template framework from the Bootstrap examples page.