2D Documentation from STL and other files (GO vs. PRO)

Can I derive 2D documentation using SketchUp Go or is this only possible through Pro?
And can 2D documentation be derived from an STL, STP, OBJ or any other files?

You can export .png images from SketchUp Go and use them in some osrt of page layout application to create documentation. With SketchUp for desktop (Pro or Studio subscription) you would also have LayOut which is designed for creating documentation from SketchUp models and other content.

If you can import the file into SketchUp Go to create a 3D model you can then export raster images as above. With SketchUp for desktop, again, once you’ve imported the file and created your model, you can use LayOut for the documentation.