For example, Length is listed under Audio and Video.
There is only one Length property.
The same Length property is listed under multiple sections.
Most properties belong to multiple sections.
I did experiment with a column to show all the owning sections.
However, because most properties belong to multiple sections, it becomes hard to read and irrelevant.
If you click the Everything properties section (top left), all Everything properties are shown.
The Video section is a sub section of the Everything properties section.