Although this tutorial is made for the PRO version, it can also help to understand how the LITE version works.
Try the PRO demo now:
https://store.steampowered.com/app/2327780/HAELE_3D__Feet_Poser_Pro/
https://store.steampowered.com/app/2378840/HAELE_3D__Feet_Poser_Lite/