Keyword List, add "SELECTED"

Please consider adding "Selected" or similar word for single or multiple images so that we can edit Keywords only for those images.  See mockup title below right in red.  I use Lightroom Keywords in documents, such as this one from a Revolutionary War Pension File.  Sometimes there are hundreds of name within a file.  There are no faces to keyword, just names in the document.  I need to use the "Convert Keywords to Person Keywords" to edit.  Also, having those keywords in a List insead of one long wrap-around paragraph would help faster editing.  Thanks!