Currently in development.In this sub-tab of Settings, you can take a look at all the defined Product-Ranges (= Products with Facets).
These are automatically set up once you assign Facets to specific Products.
For now, you can not add any Units (Facets) or add a completely new Product Range - this tab is still a WIP.
You can click on Edit of an existing Product Range to see the assigned Facet-Categories to these Products: