January 21, 2017, 08:45:50 pm
Hi KASK, which version of Lumion are you using? Still the educational version?
If so, please note that you can register an educational license on your forum profile page to get access to the (hidden) forum section for educational users.
Regarding your question, there is only a uniform scale function in Lumion, so you'll need to scale the cube in SketchUp and re-import it in Lumion.