1. Click on the magnifying glass icon (top right) and type in the address of the stop you want to add.

2. When you type you will see current stops that match your search and then the stops to add. Click on the "+" button.
Repeat this process for all the stops you want to add and click Next to continue.

3. In the last step, you can edit each stop by clicking on it and then click on Add to end or Reoptimize. If you add them to the end, you will only add these stops to the end of your route. If you re-optimize, a new route will be generated taking into account all your stops.