@laggingbehind said:
I guess the reason I wanted to go down the Schema route is because if I have a drawing with 30 components I thought it would be easier than creating the attributes each time....however I stand to be corrected if I'm wrong
That sounds about right if you don't need reporting directly in SketchUp. I don't know if there are extensions that provide Classification reporting for SketchUp - there is no reason there couldn't be one similar to "Generate Report" only for Classifications.