I am new here and am looking to get my feet wet with a 1390T that is on sale at a local store. I am not sure what features I want yet so want to start cheap with this unit and figure it out from there. I travel the back roads and can get other peoples tracks of the rides they took previously. I know I can't do routes with that unit but can I put in a track .gpx that my buddy gave me and follow his off road course?