What is Plugin Editor? How to Edit WordPress Plugin Files

WordPress.org
Because WP Edit is the culmination of three years development in the WordPress content editor. You can begin creating content (with advanced layouts); easily insert all types of external media (YouTube, Vimeo, etc.); adjust fonts, styles, colors, and sizes; and much more!
WordPress.org
This page was moved to https://wordpress.org/support/article/editing-files/ except above language locator.
How to edit a WordPress Plugin?
Once you have made the changes, make sure, you have click the Update File button, to save the changes. A splash message that tells you that the file has been changed successfully appears, once you have clicked this button. If you can see no message, the changes are not saved, so repeat the process.  When you cannot see the update file button, then the file is not writable.
Plugin Editor in WordPress
If you head over to this section, you will be able to see a drop down menu on the top right whereby you can select the plugins that you want to edit. Once you selected the plugin, the plugin files will be loaded at the bottom.
WordPress Mobile Pack – Blog
The especially important thing about this WordPress editor plugin was that it be fast out of the box. The creators achieved this by developing instant reaction. Things truly do react instantaneously with this WordPress editor plugin, so you can spend more time designing your site and less time worrying about the speed of uploads and the like. This makes this WordPress editor plugin the fastest of any other plugin, whether free or paid. Another benefit of this editor plugin is that you see what the page will look like right as you’re making changes. This allows you to edit things on the fly and get things right the first time.
WordPress.org
What The File adds an option to your toolbar showing what file and template parts are used to display the page you’re currently viewing. You can click the file name to directly edit it through the theme editor, though I don’t recommend this for bigger changes. What The File supports BuddyPress and Roots Theme based themes.
How to Quickly Find and Edit Code From Themes and Plugins
When finding the right template isn’t enough, String Locator is here to help. Imagine that you want to modify a specific HTML element in your theme or any plugin you have installed. You can quickly locate the element by inspecting it through your browser, but you will still have problems finding out the file which rendered that element. Since you’re now working with custom themes and plugins, files may have different names from what you’re used to. A developer might have placed a code in a separate file to make thing easier for further development, and you can get stuck on searching the code through hundreds of files. Instead, you can use String Locator.
How to Disable WordPress Theme and Plugin Editors
You can completely avoid this by disabling the Theme Editor and Plugin Editor by adding a WordPress constant (or rule) to the WordPress configuration file (wp-config.php) found in the installation folder on your web server. Download the wp-config.php via FTP and open the file in a text editor, such as Notepad (PC) or TextMate (Mac). Look for the following line of code:
Installing WordPress Plugins
6. The last menu item beneath Plugins in the WordPress Dashboard is the Editor. The built-in WordPress plugin editor can be used to make changes to any of your plugins’ individual PHP files. Just be aware that if you make changes, plugins updates will overwrite your customizations. So, unless you know PHP, you probably won’t want to edit any of your plugin’s PHP code.