How do I enable and disable auto-sync in the Lumin app?

Here is a detailed guide on how to activate or deactivate the auto-sync feature in the Lumin mobile app.

1. In the Lumin app, open a document stored in My Documents.
   1. When you upload files through Google Drive or Dropbox, they will sync automatically.
2. Once you have made edits to a file, simply tap on the menu button at the top-right corner.
3. Then, scroll down to Auto-Sync. Use this toggle to turn it on and off.
   
4. The app will then sync any annotations or edits made to the document with the copy stored in Google Drive.