Addresses for Assets

Some customers have sites that have flexible staff arrangements. For example, staff are based at head office, but occassionaly travel to a satellite office to meet clients, or perform maintenance duties.
But those same satellite sites have fixed assets like Printers, Routers, Network Switches etc.
At the moment, there isn’t a way in Syncro (except perhaps with a custom field) to denote which address an asset is located at.

Please implement a method for denoting the address that an asset is located at.
This method should be searchable and reportable, and be accessible from the API so that queries can be run to find lists of assets that are at each of a customer’s site addresses.