How to switch from Unreal Editor for Fortnite to Fortnite Creative Mode

Follow these steps to switch from Unreal Editor to Fortnite Creative Mode:

1. Open the Unreal Editor Launcher
2. Launch your project in the Unreal Editor
3. Click the three dots in the upper tab of the launcher next to Launch Session and uncheck the box next to Auto Start Game. 
4. Click Launch Session
5. Save your progress by clicking Save Selected, then wait for Fortnite to open to upload your level created in the Unreal Editor
6. Wait for Fortnite to finish loading before continuing to edit your island in Creative mode
7. Press Tab to resume editing