To import your existing non-custodial wallet, such as Metamask, you can follow these steps:
On your dashboard, you will be presented with the options to connect, create or import a wallet.
Choose the Metamask option from the “Connect Wallet” menu.
A screen will pop up in the upper right corner for you to click on “Sign”.
Once you accept the connection, your Metamask will be linked to your Nexo Wallet.