I enjoy using the Active captain app to plan routes input waypoints etc.
yeah but garmin needs to build a new pc app for managing groups of waypoints as a file. homeport was an awesome tool for this but it was 86'ed.
AC is pretty awesome if you have navionics+ mobile to couch scout and mark waypoints then upload them to the mfd. i really like that feature. now if i could figure out a way to do that with my c-map waypoints.