Well, nuts. I managed to create a file that injects the slaves. And each has the correct actor (BODY) and the correct value. But they're not finding the master parameter. Can a new master not be injected into the body???? This is the code (from the saved CR2 that has the new master. I removed everything else and saved as pz2. For brevity, I removed the slaves since they work. I feel I'm missing something obvious. Writing a file that will inject the slaves is simple enough; the file is not very complex. As an aside, when I use the GUI to add the missing master (that the pz2 didn't add), it's all wired and good to go. And wow, it's beautiful to watch that heap of dependencies work smoothly together to make her smile using a single dial :)

{

version
    {
    number 11
    build 35540
    }

actor BODY
    {
    channels
        {
        valueParm Smile
            {
            name Smile
            initValue 0
            hidden 0
            enabled 1
            forceLimits 0
            min 0
            max 1
            trackingScale 0.01
            masterSynched 0
            keys
                {
                static  0
                k  0  0
                }
            interpStyleLocked 0
            }
        }
    }

Figure
    {
    }

}