Action name: MakeAnyNameThis command gives name/renames/deletes name for the specified address. This is a more powerful variant of Rename command.
To delete a name, simply give an empty name.
If the specified address is referenced, you can not delete its name. Even if you try it, IDA will generate a dummy name.
This command is available only from the name window.
For an explanation about the dialog box entries, please see the Rename current address command.
Edit|Other submenu. How to Enter an Identifier. Names representation.