You can create multi-legged routes with the IMDV if you have a Google maps or Here.com API key. More information here.
Adding a Route
If you have the Google or Here API key installed in you RAMADDA then a Route glyph type will be shown in the New menu. Select the desired provider (here.com or google) and the route type:
images/newroute.png?version=878
Click and draw a multi-segment line. Double clicking to end. The route will be shown. The legend shows the calculated distance:
images/route.png?version=878