+1 for globally recognised standards to be considered.
Linetypes, swatches, layer organisation, symbols, fonts, etc should be incorporated into SU/LayOut so that it is possible to create a compliant drawing if necessary.
A “Drafting Standards” expansion pack for LayOut could be created.
But then are we supposed to do anything in LayOut or are we supposed to draft in SketchUp and export to LayOut for annotation and page arrangement?