I'm wanting to use the Sketchup plugin so that I can create models for TF2. I have both Source SDK and Sketchup Pro, and on valves website, it seems I should already have the plugin files. It says to go here: C:\Program Files\Steam\steamapps\USERNAME\sourcesdk\sketchup Which I am. The problem is there is no sketchup folder or files. How do I get these so that I can add them to sketchup?