I’m not sure I’m following your question, but if I remember correctly (and someone correct me if I’m wrong because it’s been awhile since I’ve done this) bulk editing can only be executed on one field at a time. 

Here’s the guide: 

Hi Kelley, 

Bulk metadata editing is a Starter Plus (& above feature), which is why you are unable to complete the action. Ideally, you wouldn’t be seeing it as an option, so I will look into why it is visible for you. 

We do have a trial available for Professional, which would give you access to all of the Starter Plus users as well as custom metadata, user roles & permissions and more. A breakdown of features per edition is available here on our pricing page. If you’re interested in the trial, please feel free to let me know here or send me an email at aubrey.shanahan@preservica.com. 

Thanks,
Aubrey