It's certainly possible to use the quad relay to turn on/off 4 separate devices, however it requires a significant rewrite of the plugin code. You can give it a try...
I'm wondering if it would be possible to use the relays for something else than blinds/screens?
Hehe, yepp I'm trying.
I first tried to look at your code, but having no experience with LUA I found the Somfy example on micaseverde.com instead.
The problem with that is that there is a lot of references to old stuff, UI4, that I've only read about. (Beeing a Vera owner on my 5. day now.)
I'm finding out new stuff as I go
Now I'm struggling abit with what I think is problems opening the serialport right. It is there somewhere, as your plugin worked nicely
Also I would love to read from the serialport to get the status from the relayboard, does your code do this, or do you rely on what is set thru Vera?