ListLevel Object

Each ListTemplate object has a collection of ListLevel objects.
The ListLevel object is the object that defines the actual formatting of the ListTemplate object.
For single level formats the ListLevels collection only contains a single ListLevel object.
A multi level list may contain up to nine levels.

listlevel = ActiveDocument.Paragraphs(2).Range.ListFormat.ListLevelNumber 

Does changing "the number style for this level" to (none) - make the level hidden