I did a lot of looking into the mirror dipping, and it is all dependent on the door control modules installed in the car. There are many different versions, which are designated by the letter at the end of the module number in VCDS.
The higher the letter on the end of the number the more features the module seems to support. For example, a golf which has auto-dimming, folding wing mirrors, which are heated and electrically adjustable with an integrated indicator will have a high letter at the end of the module number.
Long story short, the conclusion I came to was that you could enable the menu option in VCDS, but unless you exchange the door control module, which may or may not be an option due to it interacting with the central locking etc. then I don't think it is doable.
My CR FR has fairly basic door modules as it only needs to fold, heat and adjust. I have the details of the module letters and features somewhere, I'll see if I can dig them out.