HI - The windshield shade setting directions were driving me crazy, so I used the link from Colonel Ed Felker manual for Vegas/Axis, and the info for MCD Innovations and below is the link to the manual which matched my shade. I found page 6 but more so page 7 helpful. Page 7 instructions seemed more straight forward, set the high and mid point with ignition on, then move to ignition off for night shade length.
Hold the button, and the rocker, let go of button, bring shade to the level you think you want, bump it a bit lower if you need to, reverse direction up to your high point, etc.
Maybe this info will be helpful to others, as you all have been so helpful to us as somewhat new trippers to the road and to our 2016 Vegas.
http://mcdinnovations.com/files/Ownersmanual031318.pdf