I have noticed that Google Maps have recently introduced a great feature which allows us to easily modify the route "Customize your driving directions"

It appears to add modified route information in the From/To location data fields when we use this feature in web page to drag an drop changes to route. I have not tried but imagine we can "cut & paste" additional information in GPX Get directions fields to get the alternative route into Maemo Mapper?

Learning more about Maemo Mapper each day and really appreciate the built in the capabilities!