Menu hierarchy of the new menu item. The description is given in the form of "<Level>.<Level>…" whereby "Level" is always the 0-based index of the menu entry. For example, to insert a new entry in the first place in the "Edit" menu, use "1.0" and LLDESADDACTION_MENUITEM_INSERT.
Note: However, this feature is only available in the classic menu with toolbar – not in the modern ribbon menu.
Platforms: Windows 10 (Version 21H2 - 22H2), Windows 11 (22H2 - 25H2), Windows Server 2016 - 2025
.NET: .NET Framework 4.8, .NET 8, .NET 9, .NET 10