Custom hyperlink column for alert view

When the Group property is displayed as a column in the Alert widget, the group values are displayed as hyperlinks to the group object.  We would like to have a custom URL property on device group objects that would be displayed as an Alert widget column.  Preferably there would be a checkbox option to use the custom URL property value as the URL of the Group hyperlink.  

Our use case:  we create a device group for each business service CI in our CMDB, and we would like the Group hyperlink to be the web link to the business service CI in our CMDB.