Passing worker name to pool
Is it possible to pass worker name to pool in "simple" mode?

For example I have 2 rigs and want them to mine to different addresses and names. Can I use some tricky configuration like:
"pools": [
        {
            "url": "pool:port",
            "user": null,
            "pass": null,
            "rig-id": null,
            "keepalive": true,
            "variant": 4
        }
    ],
or something similar to use wallet address, username and password from rigs on the pool side?