Object: Response of participant in Bulk email

Is there a good way to limit the options a user see's when applying a filter to a lookup field other than deleting the records you don't want them to see? I imagine it is best to limit the access rights of certain lookup records, but I don't know how to easily do that if the lookup does not have a list page configured.

This is in the Email section of the Marketing module, the audience detail when adding a filter has lots of options, but I only want there to be 8 options.

All of the records that I put "inactive" for the description in the image below, I want to hide from users when they are adding a filter on the response column such as in the image above.

Would a simple business rule in the section wizard work? I am assuming not since this is a detail.

There is no list page, so I don't know how I can get to set up access rights for individual records in the lookup so I can delete all employees access rights. Would I have to manually configure an edit page?

I have the mass access rights update marketplace add-on, however it does not work for lookups I've noticed. There is no option to set up access rights when I select multiple records then open the actions menu.

Thanks!