Skip--
For some years,I have been deleting horizontal separators when displaying tall 
arrays.  This verb displays boxed values without top-level horizontal 
separators:

nobar=: (((1&|.@ (_1 0&,@ (((9{ 9!:6 '')&=@ ({."1))# i.@ #))) {"2 ])@ ":)

You could also provide for deletion of first and last rows.

This will not enforce alignment of vertical bars when using variable-width 
characters, nor deal with second-level horizontals which would still appear, or 
take up space if replaced by blanks..
--Art

Date: Tue, 7 Jul 2020 10:09:18 -0500 From: Skip Cave <[email protected] 
<mailto:[email protected]>>
. . . it would be useful to have a boxing format option to remove horizontal 
boxing & corner characters for
environments that don't have fixed-with fonts, that use non-standard-width 
characters, or that force double-spaced lines (Quora). . . .
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