1. A method of implementing auto-guidance, the method comprising: performing human interactions with an auto-guidance system of a mobile machine solely with three or less electromechanical switches of the auto-guidance system without using a graphical user interface display while the mobile machine is operating and moving from a first point to a second point; in response to a first electromechanical switch input from one of the three or less electromechanical switches while the mobile machine is at the first point, setting by the auto-guidance system the first point for auto-guidance of the mobile machine; in response to a second electromechanical switch input from one of the three or less electromechanical switches, after movement of the mobile machine from the first point to the second point, setting by the auto-guidance system the second point for auto-guidance of the mobile machine; activating, by the auto-guidance system, auto-guidance of the mobile machine; and automatically guiding, by the auto-guidance system, the mobile machine along a path defined by the first point and the second point; wherein the setting of the first point, the setting of the second point, and the activating are performed by one or more hardware processors.