For the super admin, replace WP Admin Bar My Sites menu with an All Sites menu.

Super Admin All Sites Menu

<ul>
<li>Doesn&#8217;t use <code>switch_to_blog()</code>, i.e. Super Admin All Sites Menu is faster and uses less resources than the WP Admin Bar My Sites menu.</li>
<li>Subsite menu data are stored locally in IndexedDB (did I say it&#8217;s fast?). The local storage is updated when;
<ul>
<li>the plugin is activated.</li>
<li>a site is added or deleted.</li>
<li>you change a blog name.</li>
<li>IndexedDB is out of sync with site changes.</li>
<li><a href="https://github.com/10up/restricted-site-access" rel="nofollow ugc">Restricted Site Access</a> is activated or deactivated.</li>
</ul>
</li>
<li>When subsite menu data is updated, AJAX is used and it&#8217;s done in increments (100 sites per increment).</li>
<li>List all subsites. WP Admin Bar My Sites only list sites you&#8217;re a local admin on.</li>
<li>Mark sites that has <a href="https://github.com/10up/restricted-site-access" rel="nofollow ugc">restricted site access</a> with a red icon.</li>
<li>Sites menu is sorted alphabetically.</li>
<li>Search filter.</li>
<li>Add more menu choices:
<ul>
<li>Under &#8220;Network Admin&#8221;
<ul>
<li>Add New Site</li>
</ul>
</li>
<li>Per subsite.
<ul>
<li>&#8216;New Page&#8217;</li>
<li>&#8216;Users&#8217;</li>
<li>&#8216;Plugins&#8217;</li>
<li>&#8216;Settings&#8217;</li>
</ul>
</li>
</ul>
</li>
</ul>
<h4>Prerequisite</h4>
<ul>
<li>WordPress Multisite</li>
<li>A modern browser, IE 11 isn&#8217;t supported.</li>
</ul>
<h4>Filters</h4>
<p>You can use the following filters to override the defaults:</p>
<ul>
<li>
<p><code>all_sites_menu_order_by</code></p>
<ul>
<li>
<p>Sort menu by. Default value is <code>name</code>, accepts <code>id</code>, <code>url</code> or <code>name</code></p>
<pre><code>add_filter( 'all_sites_menu_order_by', function( string $order_by ) : string {
    return 'url';
} );
</code></pre>
</li>
</ul>
</li>
<li>
<p><code>all_sites_menu_load_increments</code></p>
<ul>
<li>
<p>AJAX load increments. Default value is 100.</p>
<pre><code>add_filter( 'all_sites_menu_load_increments', function( int $increments ) : int {
    return 300;
} );
</code></pre>
</li>
</ul>
</li>
<li>
<p><code>all_sites_menu_plugin_trigger</code></p>
<ul>
<li>
<p>Trigger an update of local storage (IndexedDB) when a plugin is (de)activated. Default is <code>[ 'restricted-site-access/restricted_site_access.php' ]</code>.</p>
<blockquote>
<p>Note: Must be an array and each element in the array must point to the main plugin file. Syntax <code>'plugin-dir/plugin-file.php'</code></p>
</blockquote>
<pre><code>add_filter( 'all_sites_menu_plugin_trigger', function( array $plugins ) : array {
    return [
        'restricted-site-access/restricted_site_access.php',
        'myplugin/myplugin.php',
    ];
} );
</code></pre>
</li>
</ul>
</li>
<li>
<p><code>all_sites_menu_search_threshold</code></p>
<ul>
<li>
<p>Don&#8217;t display search field if there&#8217;s less than N subsites. Default value is 20.</p>
<pre><code>add_filter( 'all_sites_menu_search_threshold', function( int $increments ) : int {
    return 40;
} );
</code></pre>
</li>
</ul>
</li>
<li>
<p><code>all_sites_menu_search_threshold</code></p>
<ul>
<li>
<p>Don&#8217;t display search field if there&#8217;s less than N subsites. Default value is 20.</p>
<pre><code>add_filter( 'all_sites_menu_search_threshold', function( int $increments ) : int {
    return 40;
} );
</code></pre>
</li>
</ul>
</li>
<li>
<p><code>all_sites_menu_force_refresh_expiration</code></p>
<ul>
<li>
<p>How often a forced refresh should be taken. Default value is <code>3600</code>. Set the value to <code>0</code> to disable forced refresh.</p>
<pre><code>add_filter( 'all_sites_menu_force_refresh_expiration', function( int $seconds ) : int {
    return 3600;
} );
</code></pre>
</li>
</ul>
</li>
</ul>
<h4>Development</h4>
<ul>
<li>Active development of this plugin is handled <a href="https://github.com/soderlind/super-admin-all-sites-menu" rel="nofollow ugc">on GitHub</a>.</li>
</ul>


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