Kam XY laser

Does anyone have any experience of using this, or any other lasers with Soundswitch? I have emailed support but other than pointing me to make my own fixture, their support has been, frankly, pathetic (it’s now a month since my original query).

Anyway, I can’t get the shutter to control at all. I can either create a channel and turn it on with an attribute, but then it won’t turn off, ever, or set it up correctly with a shutter channel but once it’s turned off, I can’t get it to turn back on. Any ideas anyone?