Make a List Folder for EOM 2015 (File/New/List Folder)then make new lists for each route (File/New/List)
Put each route into its own list folder and you can view individually. Even if you have them all in one list, you can select them one at a time.
Note you have to change avoidances for the FJR Adventure Scenic route to allow unpaved roads. You can do this by adding a profile from Motorcycling, making the change, and naming it something like Motorcycling with dirt.
Or remind me what your email address is, and I'll give you finished Garmin files that should just import to Basecamp (3.9 MB).
Iris, In addition to maps at 2016.1, there is also an update to Garmin Express 4.1.5.0, and Basecamp is up to version 4.5.1.