FCD Mod?

As I drive back and forth to work every day, I got to thinking... wouldn't it be nice if you could have a FCD Cruise Control? It could be used to help the driver stay within a certain FCD range (rather than mph range), but probably wouldn't activitate until you get over a certain speed (say, 40 mph).

Or maybe I'm just too obsessive about FCD because I'm constantly looking between the road, my mph, and the FCD gauge.

My guess is something like that would be pretty difficult to engineer, right?