Unity editor window three dots menu
Adds your custom menu items to an Editor Window.
IHasCustomMenu.AddItemsToMenu
https://docs.unity3d.com/ScriptReference/IHasCustomMenu.AddItemsToMenu.html
Adds your custom menu items to an Editor Window.
IHasCustomMenu.AddItemsToMenu
https://docs.unity3d.com/ScriptReference/IHasCustomMenu.AddItemsToMenu.html