I might believe that inside can be a lot of useful codes - just when you first open it and don't really know what all that is about - it's not clear what to do. Go through the parameters first and change something? Use Accessories Add on? Wall Accessories, Zone Accessories? Place on floor plan? Just a little bit explanation / introduction would be great. I will take a look more.
I also think, it would be great to establish some sort of international community of people, who are all developing GDL objects useful for all. Currently many different developers are making their tools - some of them very good, some of them so-so - trying to advertise them on the web-sites or sell (I'm not sure that selling happens really successful). If it would be one global project - with ideas, plans, schemes - than anyone can take part of the common development. And finally we all will get libraries that doing what we need.