Hi Stefan,
do not think so...
This feature can not be implemented for source files, or can will be too complex to do so (because such tags can be only inserted in comments and so on).
Also I do not like that you need to insert first start tag and then end tag..
Also this will require some "special" scope tags, because I need to distinguish if such scope exist in spec or not (remember case with source files).
So, this mean significant work.
Better, from my point of view is too add feature to hide any text area (line based) without additional text modification (like this done in Notepad++ fex).
I have this idea in todo, will try to add after 1.50.
Best regards,
Alex.