I decided to take a cleaner approach, so I created a directory “front-end-pm” in the root of my child theme as directed per your instructions and placed a copy of the Directory.php in it.
I placed this entry..
<input type="submit" value="Find" />
as the last entry in the <form> tag structure as per the attached screenshot, in the directory.php.
Will this mean it is less likely to break in the future, are there plans to change the code structure for the directory.php file?
If so I can wait or just keep an eye out for for the changes and remove the bypass after your update if there is to be a change?