Sorry for my delay - just juggling work & personal projects - a project I WILL share in another thread...
At first - I wasn't exactly sure what you meant - like, where do I find the setting - and was it a Prusa or Elegoo setting. But, I happened to have another Slice up on my screen in Preview mode. And, I was going to post here about this weird problem that the slice looks weird and shows up like a Ghost!!! As such:
But, then I quickly saw the setting - as noted below - which also solved my other problem and now I can properly view the Slice:
Still - I have to SERIOUSLY Wonder - Why the Hell would Elegoo make that as an option and initially have it turned off? Why would you NOT want to see the Outer Wall in the Slicer???
-K