Step 1. (First time using Electron Cash? Skip to Step 3.)
Click on the drop down wallet carat.
Select “Add new wallet”.
Select “Import Addresses or Private Keys”
Select the QR Code icon at the top right hand side.
Focus the camera onto the Public Qr Code on the Bitcoin Cash Note until it registers.
Notice the public address has been filled in for you. Now click “Next”
Enter a name for the watching only wallet, then hit “Save”.
Press “Open New Wallet”.
The balance of the watching wallet is now visible.