iTunes music library grouping field no longer accessible
iTunes 12.12.7.1, downloaded from the Microsoft store running on Windows 11 Pro 22H2.
iTunes no longer provides a way to add/change the iTunes music library 'Grouping' field which previously appeared in the 'Song Info' context menu - see images below showing the existence of Grouping values, yet no way to change them.
Any suggestions as to how the ability to edit the Grouping field is restored appreciated!
Windows, Windows 10