I have updated to the 4.0 version of this theme and like the down arrow in your demo that can be added to the nectar slider. Problem is I've searched for this option and can't find it as well as anything about it in the videos or docs. I am using the home - Landing Page as the starting point when I created the home page/slider. Where would I find this option?

Nevermind, I ended up finding it. It's on each slide rather than on the options for the slider itself.