@ingox 32 no longer works, with the addition of the list box 0bj in pd 52 all spaces (ascii 32) are escaped so symbols with spaces can be differentiated from lists, they made this behavior universal. 160 does work, as does '194 160' the unicode non printing character. I did not know about 160 on its own, that save me some typing. They also snuck in an edit method for arrays along with a few other new methods in 52.
"New method for garrays to set colors, line width, visibility, display style and disable mouse editing (documented in 2.control.examples/16.more.arrays.pd). Also added more flags to the "plot" object that plots arrays in data structures (by Christof Ressi)."
But I think @Balwyn is well on the way to making the old fashioned vanilla array a thing of the past.