OK, noob question. How do you use the position coordinates to navigate to a place? I have a compass and I can of course use that to easily get back to my base. However, I've noted several interesting spots in a very mountainous region. The mountains make it hard to travel in a straight line and see very far. When I try to use the coordinates I can't seem to make the numbers all change in the direction of the desired position. If I move toward the first number the second and third numbers are way off, and vice versa. Is there a trick to it? 
Would love to be able to place multiple markers (in addition to base) and use the compass to navigate to them.
