Hi,
I tried to figure out a way of how you could use it, but there are some issues. When you use URL Selector form control the relative URL is being stored in the Database (not the html link itself)
This way whenever you want to use the value out of it, say in the Transformation you can build the link yourself such as:
<a href="<%# Eval(fieldname)%>" target="_blank">My Link</a>
However this will not work right now because there seems to be a bug in the current version and when using Eval on URL Selector form control the value is not recovered. I have submited the bug to our developers and Im expecting their feedback on this next week. I will keep you updated.
Kind regards,
Richard Sustek