Outstanding Employer needs outstanding CampaignMonitor.com expert. Possible ongoing work.

We use CampaignMonitor to manage our email subscription. I'm looking for someone who is experienced with CM monitor to provide occasional help. To demonstrate your skill with CM, (and show you read this description :) please answer this question: Is there a way to create a hyperlink that, when the user clicks on it, it will set a field property for that subscriber in our CampaignMonitor account? (I.e., someone could click a link like "I want to be a beta tester" and if they click that then it's flagged in their CM record.)