We're trying to build a template which has an image with a default link e.g. http://www.twitter.com/#!/User
This default link will be used 90% of the time but every now and then the link will need to be changed.
So the question is how do we make this link editable for the image and how do we make it a specific URL as default?
Have you tried this:
<a href="<singleline label='twitter'>http%3A%2F%2Ftwitter.com%2Fcampaignmonitor</singleline>" target="_blank"> <img editable="true" label="Hero Image" src="/path/to/image" width="640"></a>
I have not tried this, so I cannot say if it will work or not.