You can use the Connect to other camera feature in Multiview Recording and Snap Video mode.
You will be able to view multiple camera screens from your phone screen.
How to connect to your LG Friends Camera
1. Install LG Friends app.
2. In normal mode, select Multiview Recording or Snap Video.
3. In preview, touch the Connect to other camera icon.
4. From the list, select the camera you wish to connect to.