Configuring source code accessor on linux


I follow this documentation to configure a qtcreator project :

So now I can run my c++ project from qt creator.

But when I want to edit cpp from unreal editor, I found no way so that it can find qtcreator.

I found this documentation :

But editing DefaultEditorPerProjectUserSettings.ini (in my config project folder) or LinuxEngine.ini give no results.

Is there a good way to map my source code editor from unreal editor?

Sorry, I just forgot to install the qt creator code accessor plugin.