tienhmdev

The “TINET Chat Buttons” displayes an fixed contact button on the bottom right of the screen. It opens an modal with your favorite contact form plugin. Before you have to generate a contact form and after this copy the shortcode into the plugin settings form Floating Contact Button. 
The plugin is real lightweight. The .css file is minimized to load as fast as can.
<h3>A brief Markdown Example</h3>
<pre><code><?php code(); // goes in backticks ?>
</code></pre>

TINET Chat Buttons

Thanks!

TINET.VN Chat Buttons is a free WordPress plugin for adding the live chat/call functionality of popular social media messaging apps.

followalter

This plugin makes the right sidebar on post.php pages (where you edit a post) stick to the top of the screen when you scroll, so all functions of the sidebar stay within reach. It’s works with the classic version of the editor.
If the total height of the sidebar is larger than the window height, the sidebar sticks to the bottom instead, so the whole sidebar can be made visible through scroll.
On top of this, when you publish or update a page, the plugin will make the page scroll down to the previous scroll position.
This saves users from both having to scroll up (because of the stickyness) and having to scroll down again (using the previous scroll position) every time they update a post!

Admin Sticky Sidebar

This plugin makes the right sidebar on post.php pages (where you edit a post) stick to the top of the screen when you scroll, so all functions of the  …

TINET Chat Buttons vs Admin Sticky Sidebar