How can I use EnhancedInputEditorSubsystem?

Please excuse the use of automatic translation for this question.

I would like to use EnhancedInputEditorSubsystem to add a new operation method to LevelEditor, but I do not know how to use it.
I tried to build this Blueprint based on the EnhancedInputLocalPlayerSubsystem example, but when I executed it, the key events registered in the MappingContext were not called.
How can I use EnhancedInputEditorSubsystem?
(UEVer.5.3.2)