I don't I'm afraid Mark, as I like my chairs to use just PG Drives stuff without any proprietary modules like Permobil's ICS.
Don't understand what's different between R-Net ISM module and ICS as both do the same thing more or less, except ISM is easier to set up and don't require additional software or cables to program it. That's why I tend to stick with Curtiss-Wright stuff for everything, less hassle.
Steve