How to add item to any section of main menu bar?

Help UI
, ,
1

Godot Version

v4.3.stable.mono.official [77dcf97d8]

Question

In Unity, using MenuItemAttribute, I could very easily add my own commands to the menu bar. To any section and subsection.

In Godot it turned out to be much more difficult.
I created a plugin and with the AddToolMenuItem method I can add my commands to Project/Tools.

But what if I want to add my commands to another section?
For example: My Project/Open Main Scene?

#if TOOLS
#nullable enable
namespace Project {
    using System;
    using System.Collections;
    using System.Collections.Generic;
    using Godot;

    [Tool]
    public partial class ProjectBar : EditorPlugin {

        public override void _EnterTree() {
            AddToolMenuItem( "Hello World !!!", Callable.From( () => GD.Print( "Hello World !!!" ) ) );
        }

        public override void _ExitTree() {
            RemoveToolMenuItem( "Hello World !!!" );
        }

        public override bool _HasMainScreen() {
            return true;
        }

    }
}
#endif
2

Did you see the example from has main screen?

I will say I don’t know much about the editor interface. And it doesn’t seem well documented.