Hi Sliderule,
– The maximum width Roger can make is 7 cells. (7 columns)
– 6 is possible but I did not include on my website … the matrix gets too large so there had to be some trimming.
(incidentally the original 645 had only 6 cells – but the ‘6’ is referring to height and nothing to do with cells)
-5, 4 and 3 cell widths are available.
The website shows effectively what is available.
I hope I’m not making things difficult to understand!