How to Easily Make Alternating Wallpapers in Windows 10 Tech. Preview

I didn't notice it until I found that in Windows 8.1, you can't do this...
   Here's what I do to create alternating wallpapers or slides in Windows 10 Technical Preview:
1. Right-click on the Desktop → Personalize → Desktop background → Browse...,

2. Pick a folder with all your wallpapers in it, and this part shows up in Windows 10 but not in 8.1 (in green box),

Yes, I think starting from Windows 10, you can easily create wallpapers slide from just about any folder![]