My first post as a new member, so "Hi!"
I too have a Convertible (2007 Mini One) but have a BlueFin remap, and a few optional other extras, so pretty much as per the Cooper as far as looks and drivability go - still has the One badge and sill protectors though!
The opening of the roof on the key (comfort opening?) is a programable option, according to the manual at any rate; mine too doesn't work on the key
Would be interesting to know if anyone knows how much dealers charge to activate functions or if it's possible to DIY?