Thanks for the details - haven't tried opening/closing mine while moving.If the car is moving, then to operate the roof the brake lights need to be lit. I think this also applies to the Z4 too Ian, although I can't remember lowering my roof on the 4 whilst moving to be honest. Again one for tomorrow.
The thing about 3 presses came from my manager at work. I asked him if our gear at work could re-programme my car to do this as he used to work at Sopers in Lincoln. He found that info on his phone as we chatted. Like I said, I don't know whether it works or not yet.
Tony.
ps. Most if not all cars with electrically operated soft tops have this safety switch in their operating mechanism, even the old Escort Cabrio's had to have the handbrake applied (lighting the warning light on the dash) to operate the roof.
I got caught in an unexpected deluge in Gail's car with the roof down earlier in the year. The traffic was moving at over 50mph - I had to quickly scrabble for a place to stop.