How to lock individual files.

1. Open the Secure Folder that contains the unlocked file.

2. Right-click on the file.

3. Select the Atakama menu.

4. Select "Lock".

5. Tap “Approve” on the Atakama Mobile app.

After performing the steps above the file will display a gray lock icon.

You can also watch this video guide: 

(Right-click on the image and select open image in new tab.)