How to make the robot to patrol on multiple paths, e.g. path1 --> path2 --> path3

Is there a way to make a robot patrol on multiple paths. In map editor we could create multiple paths (one path has multiple waypoints) but I don’t know if there is a way to load multiple paths into the navigation stack (e.g. flatsim) and then to make the robot move along the multiple sets of paths (e.g. path1 → path2 → path3 like this) ?? Thanks for the suggestions.