If you are comfortable running shell command scripts.
I posted some in:
I am suspecting that either the certain attributes in question do not yet exist, because SketchUp has not ever gotten to the point of setting up it’s registry keys… (which is why POSH’s utility shows “n/a”,) …
… or (as sometimes happens) permission to set or change the SketchUp registry attributes is denied.
You did run SketchUp’s installer via a right-click “Run as administrator” ?