1.

Click "Set Destination" on "GPS" toolbar, and you will see the cursor turns to setting cursor.

2.

On the map, click the mouse on the location you want to set destination, and destination symbol is placed on right the location.

3.

When the Destination is placed, under GPS position symbol comes out a triangle. No matter how GPS moves this triangle always points to destination.

4.

Through this triangle, you can control the relative relation of the current GPS position and destination.