Hi All,
Well, after being really annoyed at not being able to switch out the DCS in any other mode other than Comfort I have found what I think is a way around it.
My car is a MY2013 so I can't speak for all the different years and software on other F20/21's so please bear this in mind. I also have the M-Sport adaptive suspension on my car which although is a great idea I don't think I would choose it again.
Anyway, try the following and post back if this works.
Put your car into Sport or Sport +, then hold down the DCS button until the DCS OFF is displayed (if you have the black panel display, not sure what comes up without this display).
And there you go, sport steering, sports suspension and sport throttle map and no DCS to get on the way of the fun. Just don't go crazy round the roundabouts
Cheers
D