Action Submenus

I discovered that I accidently created an empty submenu in my Actions list so I realized it was possible

I could not find it in the documentation, but Googling I found:

Action Goup

While I personally find the technique a little counter intuitive, it works well using the actions dropdown

Suggestion - if it's not in the documentation, it should be added since it's very useful

Suggestion - if it IS in the documentation, it should be made a little more prominent

Suggestion - what would be much easier to setup would be a real multi-level menu where you can insert a new sub-menu and drag actions into it

Did you know that if you add an & in front of any letter in the name of the action then the letter becomes a hotkey that can be addressed in a combination with Alt+Menu hotkey+user-defined action hotkey?

Yes, but what I did not know was that MP3TAG uses # to create a submenu entry, even without the &

Silly example: If I have 3 actions:

Change &Title#From Artist
Change &Title#From Album
Change &Title#From Filename

The actions dropdown will show

Change Title
  From Artist
  From Album
  From Filename

This submenu capability is a pretty handy feature that I had been looking for and couldn't find in the documentation

See also ...
Hidden Feature inside MENU Tag Sources

I do not remember from where I have got it before.