I am a architecture student and for my projects is want to create multiple versions and illustrations in sketchup, are there some great free and/or cheap plug ins to make it more efficient and atractive? Thanks. https://100001.onl/
Yes, there are.
Two main sources:
SketchUp Plugins | PluginStore | SketchUcation
SketchUp Extension Warehouse
The best extensions can be found online at …
… were @dezmo reffered to 
I wrote this when I first moved from working at architecture firms to working at SketchUp.
Knowing about these would have saved me so much time and effort!
The plugin that changed it all for me was SectionCutFace by Tig: