Products - UoM Characteristics

Something regarding UoM's in products/materials is not clear to me.

The import templates for materials have an optional sheet for UoM Characteristics, where you can import data about material weight, volume, width...

So I have imported some products with this data also.

Than when looking at the product screen, there is no section with this data. Also from adaptation mode, there are no sections or tabs that can be added for UoM Characteristics.

Is there some missing configuration? Because I cannot find anything in scoping regarding this. Also the documentation doesn't cover UoM Characteristics.

Thanks to anyone who already managed to add this and will be willing to share the solution!

Borut