Micah Miller-Eshleman

Fast, in-depth search of key WordPress objects in a multisite installation: 
– Posts, pages, and other custom post types 
– Custom fields 
– Menu items 
– Media 
– Options 
– Gravity Form settings & entries
For site administrators who want to track down specific strings in their database.
<h3>Credits</h3>
<ul>
<li>Thanks to <a href="http://shanehauser.com/" rel="nofollow ugc">Shane Hauser</a> for sharing the <a href="https://unsplash.com/photos/18dsFU_VpZI?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText" rel="nofollow ugc">banner photo on UnSplash</a>.</li>
</ul>

Network Database Search

Powerful multisite database search for WordPress administrators. Search posts, custom fields, menus, media, options, and even Gravity Forms.

Daniel Westermann-Clark

By default, WordPress network usernames cannot contain anything but lowercase letters and numbers. This plugin adds network options to let you include hyphens, underscores, or uppercase letters, if desired.
Furthermore, this plugin gives you the option to allow email addresses as usernames, or to allow all-numeric usernames (e.g. “1234”).
Finally, this plugin lets you override the minimum length for usernames (which defaults to four characters).
To follow updates to this plugin, visit:
https://danieltwc.com/
For help with this version, visit:
https://danieltwc.com/2011/network-username-restrictions-override-1-0/

Network Username Restrictions Override

Does what it says!

Override restrictions on WordPress network usernames.

Network Database Search vs Network Username Restrictions Override