I just found your post and have been looking for info on these fore a while. Because like you I have several of them and thought they may have other possibilities.
I am assuming that you do not have a copy of the software for driving them as I was looking for this in order to work out what the commands are to drive them.
If you could let me know what info you already have it would be helpful and I can let you know anything I find out in my searches.