In order for Alight Analytics to have access to your Campaign Monitor account, you'll need to connect in the Connect Page of ChannelMix Control Center.
When connecting, be prepared to provide a Client ID. This can be found from any client in your account, following the "Show client's API info" link.
You'll also have to provide the API Key from the Account Settings page when logged into your Campaign Monitor account.
The Connection Name is something you create, like "CLIENT NAME_YEAR_USERNAME".