Once you have access to the ListIQ beta, enabling the extension is very straightforward.

(if you haven't signed up for the beta waitlist, and would like to, you can do that right here)

To start, just navigate to the ListIQ listing in the Google™ Workspace Marketplace.

From here, install the extension. You'll be asked to approve the necessary permissions the product needs in order to function. Once you've done that, just navigate to a new Google Sheet and navigate to Extensions > BuzzStream ListIQ > Enable Extension.

From here, you'll be asked to authorize the extension using your BuzzStream account. Please note: you will need to be signed in in order to do this. Once you've authorized the extension, it will be ready for you to use!