Add your items to the board, including a column for URLs or ids that you want metrics to be imported for.
Install Data Importer directly from monday.com App Marketplace: https://auth.monday.com/oauth2/authorize?client_id=53487600a960bba8f31d355eda2094ef&response_type=install
You can also select the date range and other connector specific settings.
Your metrics will start importing into your board.