Hello from snowy Russia!
I own 2011 TReg (new one, also called NF or 7P), and have found some tricks with VAGCOM. You will need the latest 10.6.3 version, as it has more labels and descriptions.
1. Module 17 (instruments), 10-Adaptation, and than choose Seatbelt Chime from drop-down menu. You may set it to disabled if you dont need those sound
2. You may also add oil temperature to dashboard by selecting (in the same drop-down menu)
configuration of driver information system - oil temperature - active
3. RNS-850 is actually the same is Audi MMI 3G. So you may use all codes for it, like video in motion
VIM login-code generator for MMI 3G
or enable green (hidden) menu
Module 5F, Adaptation – 10, channel 6, set 1 instead of 0. then press SETUP + CAR for several seconds.
You may even enable Offroad navigation mode on a car without TerrainTech by setting diagnose - settings - offroad navi to 1/2 - enabled in that hidden menu. Also there's some wifi network availible in RNS-850, but I haven't found how to use it.
At the moment I'm trying to send as much as possible scans of different Tregs to Ross-Tech, as it would help to improve label-files in next versions. Please do the same with your Tregs. I believe, there is much more possibilities to enable, like enabling Dynamic Light Assist or Proactive occupant protection system (seems like these are software options)
Have fun!