Tap Route and Measure button, tap Navigation (little arrow), tap in compute route: (example) short (and compute instructions), tap "on map" for start point, proceed, tap "on map" to place the first via point, you will notice navigation in design, then proceed to next via point and so on and on and on.....at the end push green confirm button and there is your design. Save your design and ready. (all via points are 'flagged").