ion.
</p>
<p> 
  You can use Braille display to verify if a specific edit is treated as a single line or a
multiline edit. Single line edits will have their label displayed prior to edit content 
on the Braille display. Muiltiline edits will only have content of a current line.
</p>
<p>
  You can also use Script utility mode for verification and make sure that both single 
  line and multiline edits have type code = edit, but subtype code is different: 3 for 
  single line edit and 66 for a multiline.      