Hello!
I have the same problem and I don’t find how to put the “home Alternate” page, I just don’t find it. The way I understand it, I go to settings > reading > and I set up homepage and blog page. But the problem is that I don’t know how to reproduce the same look of my homepage on that new page. I don’t know how to add all the widget proposed on the Blog Feature Area: Main Slider and Link Box.