i'm willing to wager that this isn't realistic or possible. based (solely) on my
experience with the 210s, the leather/fabric fastening system does not lend
itself to R&R without having the seat removed from the vehicle, plenty of elbow
room, and some crazy leverage to remove as well as reinstall the covering.
given that the seat potentially supports heating, ventilation and pneumatics
buttoning off/on the cover is somewhat intense so as to retain nearly bomb
proof retention.
(from my 210
seat retrofit, not a 211)