As it is creating a route from imported markers/waypoints is an extremely frustrating and time consuming chore. There is no show all markers feature nor show all nearby markers feature (i.e. within the coordinates of the currently active map) and there is no look ahead to the next/nearest marker/waypoint which would be very helpful as well. There is also no feature to select a group of markers from the list and make a new route listing of them. Currently this all has to be done one marker/waypoint at a time and there is a good deal of going back and forth to figure out which marker/waypoint from the imported list is next in the route one is attempting to create, The imported marker/waypoint list can be hundreds even thousand of waypoints long -- thus currently resulting in a Herculean or near impossible task.