We recommend using the WPBakery version that comes with our theme. However, if you still want to enable the Frontend Editor, you can do so by modifying a theme file.
Step 1 － Navigate to theme folder\extendvc and open the extend-vc.php file.
If you don’t see this folder, navigate to theme_folder\framework\modules\visualcomposer and open the visual-composer-config.php file.
Step 2 － Comment out or remove the following block of code:
You should now have the Frontend Editor.