Your site doesn't appear to have waypoints? As an avid cyclist, I couldn't imagine just using some calculated route between two points. I ride for fun, not transportation.
Sure, you can add up to 200 waypoints - if you want to do that via the old-school click-click-click there’s a toggle, or you can just drag the route. I ride for fun too which is why I built a routeplanner that likes quiet and scenic roads!