Did ⍰ and ∥ ever find use? The only reference I'm able to find is the blog post about Futures/Isolates in 14: dyalog.com/blog/2015/09/….

@B.Wilson ∥ is still only supplied as a model. ⍰ was just an idea. The glyph is perfect, but potentially problematic since it looks like a Unicode failure.

@awyr_agored Welcome back!

@Adam - Thanks Adam.

@Adám Huh. It's funky that those symbols made it onto the xorg keyboard def.