I currently do this with Custom Properties, but it would be nice to have a feature built-in to Orion where you can assign a "Site" to a Node, where you can add Sites and give information about them, such as address, latitude/longitude, "tier" if your org does such a thing, connection information to do with the premise itself, that kind of thing. This way when adding several nodes, you don't have to keep going in and typing/copying in the city, region, address, site tier, site name, and that kind of thing, but rather you can just assign a "site" to a node, and then use joins in your alert criteria to pull in the site information as needed.