StageNow per-device customization

Is it possible to have per-device customization with StageNow? We'd like to transfer certain configuration files such as certificates for EAP-TLS authentication that are specific to certain devices. For other staging applications we can usually embed a device ID (serial number, MAC address, etc.) into the URI for the file via some sort of macro parameter. A hypothetical example would be downloading a file from or something like that where %SN% is expanded to the device's serial number by the StageNow application. Is there anything resembling that sort of functionality in StageNow?