(I'll assume you're talking about the File Lister function - as the Folder Lister function already has the "NAME_NOT" setting.)

Unfortunately, you can't do that - at least not directly.
However, a possible workaround is to define a Folder Lister function having as configuration the name of the folder you want to "ignore" and define only the %id% in the function code.

After that, you need to set up a RULE for the Folder Lister function and have the code output stored in a variable and hide the standard output (let's call the variable dirname_not.)

Now in your File Lister function you can use the "dirname_not" variable in the "DIR_NOT" setting - make sure the Folder Lister function is before the File Lister function.