If static mesh and actors are selected, I want to be able to select a Static Mesh property

Hi all,

I have this really huge file with 100,000+ objects in it.
In the outliner every part has a name, but that name is not present in the geometries map, so I can’t select by name. ( All are in Datasmith files)
Also every static mesh is a child of a actor with the same name. So I can’t just select them in the Outliner. In the Properties Matrix, both actor and Static mesh have the same name, but different properties. But I select them both at the same time, only the common properties are still visible.
I want to see the hidden properties.… Who cares that a material get changed on a actor, there is no material… So how I can do this? Maybe a Python or other Script?

Thanks for the help.