WOW I figured it out after many hours! it sure isn't easy but what you want to do is download the original file as a track. you can choose to simply it on gypsies.com website options before downloading. then if you want to change the starting point you find the point where you want to start and then select it and the rest of the points in the direction your going and split it. then from the original file split in the other direction and then join the two tracks together. this is all done in "on my computer" . then if you want to simply if it some more go to base camp preferences and set the simply options under transfer. transfer your new joined track to your garmin and it will simply the waypoints to the number you selected. then you can of course take it and turn it into a route. YESS!