I'm trying to create a Visual Studio 2017 extension, just for fun and to learn how VS extensibility works.
My extension must be usable from the Solution Explorer tab as a context menu button, but I would like to include it at a menu level that isn't root.
My goal is to put it in the "Add" sub-menu, but at the moment I'm only able to put it at root level (when you right-click the Project item, the menu entry is shown as the last of the context menu control).
How can I move it under the "Add" node?
Can it be done from the CommandPlacement tags I have configured in my .vsct file?