speedy222

Search every username in your WordPress site from the author. Make the WP Search Username Widget active in your Widgets menu from your WordPress site.
Or place the below shortcode in your WordPress site page content:
[search-username]
Or place the php shortcode in your themes file with a FTP Program. You can find the normal and php shortcode in your shortcodes.txt file.
Option author page with FTP:
Only if you have not a author.php page in your themes then you can upload the author.php page from your plugin directory with a FTP program and save it up your pc directory. And upload it to your themes /wp-content/themes/your-theme-name/ directory with a FTP Program.

WP Search Username

Search every username from the author in your Wordpress site.

Seif Atalla

Dynamic Display Name Manager allows administrators to configure user display names using selected user fields with efficient batch processing.
<h4>Features</h4>
<ul>
<li>Flexible Display Name Configuration: Choose from username, email, first name, last name, website, and role fields</li>
<li>Batch Processing: Update existing users efficiently with progress tracking</li>
<li>Automatic New User Handling: Newly registered users automatically get the configured display name format</li>
<li>Real-time Updates: Profile updates trigger display name refresh</li>
<li>User-friendly Interface: Clean admin interface with progress indicators</li>
</ul>
<h3>License</h3>
This program is free software; you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published by 
the Free Software Foundation; either version 2 of the License, or 
(at your option) any later version.
This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
along with this program; if not, write to the Free Software 
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Dynamic Display Name Manager

Configure user display names using selected user fields (username, email, first name, last name, website, role) with batch processing.

WP Search Username vs Dynamic Display Name Manager