Unfortunately, I'll have to tender my apologies for Saturday - another commitment has come up that I can't get out of. It's probably just as well - I'm trying to shake a rotten cold, and much as I'd like to get rid of it, you won't thank me if I give it to you!
Here's a screen shot of the E6804 setup web page. Null pixels are defined in the Output Configuration section. In this example, 3 of the 4 outputs are in use - there are 2 null pixels on the 1st output, 3 on the 2nd, and 5 on the 3rd.
The E682 has 16 outputs organised in 4 groups. While there...
Welcome to ACL. I'm also in Two Wells (Dawkins Road) and happy to talk lights any time.
For a few reasons - busy year and lots of distractions - my display didn't go up this year, but I'll be back for 2018,