I´m not sure what you´re trying to do but you can possible use "DISPLAY URL" (you can choose where the URL should be displayed e.g. in a new tab (Aware IM tab), main window, full screen etc.) and have a link in the form to start a process that uses the command DISPLAY URL.
I for example use a simple plain text attribute for links and then have a process open that link through the DISPLAY URL command.