Edge 840 for Hiking - Please create a profile Garmin?

Can a specific profile be created so the Edge 840 can fully function as a Hike/Walking device?  I have fudged the in-built Mountain Bike profile for walking but its not perfect...wondered if Garmin could add a specific Hiking profile which sets the correct GPS drift, caters for lower walk speeds etc?  I know there are specific Garmin "hiking" handheld GPS devices out there but for the money i have invested in this device it would be a welcome addition for the odd time i jump out of the saddle and use my feet!  C'mon Garmin create us a Hiking profile for the Edge 840/1040 series?