How does the multiple green feature work?

If you are playing a course that has holes with multiple greens then the multiple green feature will automatically be on and this cannot be disabled.

If you are playing a hole that has multiple greens you will see a set of distances down the left and down the right of the screen. This is the distance to the front, middle and back of the green to each of the greens. The distances on the left will be to the green on the left and the distances on the right will be to the green on the right.