In SP 2010 you simply had to add URL [Custom Columns] in the
Link slot to have it use that as the hyperlink address for the displayed items.
This no longer appears to be the case.
When I enter that as config for the slot I get the error "The site or list column group "Custom Columns" does not exist."
If I just use URL it then links directly to the list item rather than using the hyperlink from the item field.
I tried using Mark Anderson's XSLT as a workaround but that just displays no results whatsoever.