You have the option to tag your marketing emails for an Overlay analysis (representation showing the display of coloured bullet points indicating the areas clicked on your site pages). This analysis lets you see which area(s) of your email was/were most clicked.
An HTML source code must be associated with your email campaign. To do this in your interface, go to Tools > Campaigns > Emails, then click on one of the xtor in order to upload the HTML source code of your email (Browse button).
The HTML code is then interpreted as a traditional page and you will have access to the Overlay analysis of your marketing campaign.