Have been thinking this myself as well about VCDS coding. As the MK7's been out now for over 6 months, to be honest I expected to see a little more on the subject especially on the German forums but very little still seems to exist and it seems the MQB platform isn't still officially 100% integrated into the full version of VCDS yet, although I'm sure it will come.
I'll be taking the door warning lights off the Scirocco when it arrives and putting the red reflectors back in, and would like to retro fit these to the GTD (as the reflectors are the same), but I need the VCDS coding to add to the door module.
On a separate subject, the only slightly disappointing aspect is that the callipers are just the natural bare aluminium colour, as these will most certainly tarnish over time, (as have all my VW callipers), and through those lovely alloys, could let the side down. I thought in the brochure it said they were painted Grey ? Oh, well, might have to colour code them afterall to keep them looking good.