You need to firstly create/add an External Wallet and you can add another wallet again by following the steps below:
- From the Home screen, tap on your Profile Icon on the top-left corner of the screen.
- Go to External Wallets → Add External Wallet.
- Select the Digital Currency that you are going to create the wallet for.
- You can enter your Wallet Address by typing in or scanning the QR code.
- Give your wallet a unique Wallet Name then click the Add button. You will be redirected back to the Home screen, where you will see your newly created wallet.