Every so often I have a brain storm and start playing with possible addons that don't seem to be out there. Primarily because I was looking for said addons functionality. As I recall the ones I have been playing with I will add them here.
It basically will allow the inscriber to see exactly which of the known glyphs are missing from their repertoire so that they will know whether or not they need to learn more.
It is currently in the early stages with it correctly recognising an inscriber and generating a list of known glyphs and whether the inscriber can make it or not.