I've got the fob and spare key for the 2016 r1200rs. Thinking of getting another programmed fob as a back up.

1. What's the process of obtaining one and having it programmed to my keyless RS?
2. Cost?
3. Are there alternatives?
4. Alternative spare metal key cut so it can be used for seat take off instead of fob key?
5. Does one HAVE to go through a dealer and pay through the nose to have a second programmed fob?