Can I remove an "Available Custom Menus" item?

[Jeep Watson]

In my experimentation with custom menus, I created a new menu set and then added some custom menu items. It seems that once you create an item, you can not delete it without deleting the whole menu set and starting over.

I created a menu set for a particular layout and added a custom menu "Job Scripts". When I discovered that you CAN indeed delete the [scripts] menu from your set and create your own custom Scripts menu with no naming conflict, I did just that. Now I want to delete the original "Job Scripts" but there is no delete option - only Create, Edit or Duplicate. Seems like a real faux pas on Filemaker's part.

I realize that I could rename the menu and change the definitions in it and just re-use it but it seems very inelegant. Anybody have any ideas or am I missing something?