How do I show the site model as existing in one viewport vs. proposed in a different viewport?

[JonKoch]

I feel like there is an easy solution to this but I'm trying to create my existing conditions plan and show the existing site model in the viewport on the existing conditions sheet while then showing the proposed site model on all of my sheet viewports that have proposed work on them. Is this possible? 

 

Thanks!

[Poot]

Maybe by using a snapshot of the existing site on a separate design layer? 

[JonKoch]

1 hour ago, Poot said:

Maybe by using a snapshot of the existing site on a separate design layer? 

Yeah, that's what I ended up doing. I wasn't sure if there was a more "official" way of doing it.