Pixotope Editor is built upon the Unreal Engine Editor, but with a number of new elements specifically added for live broadcast workflows:

1.5 | WYSIWYG broadcast workflow
1.5 | Pixotope Plugins
1.5 | Configuration overview
1.5 | Color managed preview in Editor
1.5 | World Settings
1.5 | Utilities panel
1.5 | Place Actors panel
1.5 | Edit, Preview Live and LIVE mode
1.5 | PostProcessHandler vs PostProcessVolume
1.5 | Custom blueprinting
1.5 | Network status
1.5 | Licensing status

For users new to the Unreal Editor, please check out the Unreal documentation.