In Settings, click the General tab. Click Edit next to Google Analytics.
You can enter your Google Analytics Account Tracking Code and Save it here.
The Google Analytics code in Settings only applies to CustomerMinds Landing Pages. For an Email, once the Google Analytics setting is selected in Manage Content, all links in the Email will have the Campaign Name and the Email Name appended to them. The Email will be set as the Content Value.
When these links open a Landing Page that contains the relevant Google Analytics code, these links will be tracked against that Google Analytics account.