One of the exclusive features in fenix 5X - to generate a course on a map is now in the garmin IOS app, which we posted and feature requested back in the beginning of the year in this forum. Thank you garmin for listening in!!!
https://itunes.apple.com/se/app/garmin-connect-mobile/id583446403?mt=8
Check the changelog and try go to course and you can create a new one, pick a distance and then touch on the map where you want the starting point.
Of course, on the 5X you still get the map but on 5/5s/3hr/3 you get turn by turn directions on the wrist which is still pretty nifty.
I will try to use this feature to get new routes at home and when i visit new cities.