Since that discussion was from 2005 I guess it has been forgotten along with other tantalising features such as a macro facility. There have been several requests for a road map of proposed development but nothing has materialised as yet.
In its absence the nearest thing is the
XML toolkit that will allow you to format existing tags into a custom tag for display above the gender symbol or to create family line labels (e.g. with marriage data) in a similar way.
It is not fully integrated with GenoPro and nor is it dynamic, requiring a separate run each time you wish to update the data.