Hello @cherylgrant2014
Does your existing site use WordPress? If so, what plugin do you use to manage your MLS/IDX, or do you use any? the plugin you use may have more information on how to use them in a theme.
As for incorporating IDX feed into a staging site, it highly depends on what IDX or MLS services you use and whether they allow it to be used in a staging site. I suggest you?contact your IDX or MLS service provider for more information.
