As an example, if you’ve got 10 tracks and only -1- of them has a particular tag value set, one that you would want to use on other tracks. (e.g. Album, Genre, Artist… )
You can use the Contextual Menu --> Edit --> Edit Value … and it will take the edit right away.
But you can not directly edit it if all you want to do is retain the same value as the 1 track that already has the tag set.
So you change the value, (add a character), double-click again, remove the character and viola! Write what you intend.