A:
While some devices support, multiple stop routing or have Trip Planning, The nuvi 52LM is not one of them, as it is an Essential Series. Therefore it is unable to read and optimize any route files sent to the device by a program, like BaseCamp or MapSource.
This device is designed to route you to your destination in the quickest general way it knows how. If you are more familiar with the area, chances are you will know a quicker way in certain scenarios. If that is the case, then the device will not route those 'shortcuts' because it wants to route you on major general roads.
We have a variety of models that support routing. You are welcome to contact Product Support to get more details, the contact information can be found at www.garmin.com/suppport
~QKO