Garmin does not need to add more types...if everyone on this board had their way their would be dozens more types. Garmin just needs to add the ability for users to create their own activity types and everyone's problem is solved.
1st post asking for this five years ago and it's still not an option? Snortingbull's suggestion makes most sense, but c'mon! Auto racing and wingsuit flying are options but elliptigo/ellipticycling is not?!?