@MikeWayzovski I believe this is only cloud solution and it does not solve the problem.
I really wish SketchUp had xref functionality which saves reference of the inserted external skp file only not full model with all its data.
Managing the same hi-res objects and saving them in every project file eats disk space in no time and makes the file heavy and duplicates data - so Sketchup Developers where is your DRY principle?
Same would be great for materials. I understand the original idea of SketchUp in early 2000 to keep all in in one file it was good for making a model of the new table but not for advanced architectural designs we use Sketchup for. I would suggest an option to store bitmaps /skp files in a file or as a link to an external source.