I've just taken delivery of a 3 year old M40i. Do I really have to hold the roof lever/keyfob button down the WHOLE time for the roof to open or close and windows to do their thing? The operation stops the open/close if I let go. It's really annoying - If I want to put the roof down, I want the roof down. If I want it up, I want it up. I could understand pressing things for a couple of seconds just to check that 'I am sure' ... but I just want the thing to go up and down without having to hang onto something for the whole time. Please advise 
