How to set a the 'WIP Supply Subinventory' to null via FBDI?

Summary:

We have a need to mass update a large number of items where by we need to set the 'WIP Supply Subinventory' to null. Is this possible via FBDI? If so how (a sample file would be appreciated).

Content (required):

Version (include the version you are using, if applicable):

22D (11.13.22.10.0)

Code Snippet (add any code snippets that support your topic, if applicable):