Restance & IDX | WordPress.org

I am working on the Restance theme and am starting to get the hang of it. I have it setup as a staging site and am questioning how to incorporate my IDX feed while in the staging site. The front page has featured properties, etc. – that I’m hoping to customize similar my current site is to pull listings, areas, etc. I question if I can do this in staging, or does it need to go live. Any help would be appreciated thanks!