How to Edit the Code of a WordPress Plugin
In this article, we will show you how to access the plugin editor.
Note: This should only be done by people who are familiar with PHP and the way WordPress plugins work. If you update the plugin you have edited, your changes will be lost. Edit plugins at your own risk!
1) Login to the Dashboard
2) Click the Plugins link from the left menu
3) Click the Edit link for the plugin you wish to modify
4) Make any needed changes
5) Click the Update File button
That’s it! You should see a notice saying that the task was completed.