lzw.

A plug-in can enable all classic functions, and also contains some practical functions
<ol>
<li>Register hierarchical posts to build documents</li>
<li>Enable Link Manager</li>
<li>Enable Classic Editor</li>
<li>Enable Classic Widgets</li>
<li>Gravatar Mirror Server</li>
<li>In archive and home page display the post excerpt</li>
<li>Password protected posts only the content after <code><--more--></code> require password</li>
<li>Use vuejs and <code><div class="html-demo"></div></code> to preview html code</li>
<li>Img Src Prefix, like a CDN</li>
<li>Enable Login Limit</li>
<li>Enable SMTP Email</li>
<li>Highlight Style</li>
</ol>

ClassicPlus To Enable Classic Functions

A plug-in can enable all classic functions, and also contains some practical functions

typop

Modern editor helps you to edit posts/pages with ligthning fast. You will never loose your focus again when you update/publish a post.
Features 
+ Save with ajax without refresh 
+ 3X faster than classic editor when saving/updating 
+ Saving cmd+s or ctrl+s without pain 
+ ACF support 
+ New fixed side inspector design for meta boxes 
+ Revision meta box design improvements

Modern Editor

Modern user interface for edit screens of posts and pages. Never loose your focus again when you save/publish a post. Look ma no refresh!

ClassicPlus To Enable Classic Functions vs Modern Editor