set your final destination and then add a way point by the button on the bottom that says CHANGE ROUTE and then add  your stops in TRAVEL VIA.  The limitation is that you can only have 4 VIAS but after you have completed one you can add another one and so on until you reach your final destination..  

---

Ron_v_d wrote:

How can I plan my route to my final destination, but using several waypoints? E.g.. From Brussels to Carcassonne via Reims and Orléans?

 

Or is it possible to avoid places? E.g. from Brussels to Carcassonne avoiding Paris?

---

you will need to pick a place in each town and not just a city.  To avoid a place you just set a point elsewhere that will take you where you want to go and avoid where you don't want to go.  

for me I set a VIA on a different freeway so that I go the way I want to go.  I don't think you can avoid a whole town unless you put it another route which would be a VIA or waypoint.  I hope that helps.