It would be nice to see what custom fields are actively being used by an existing custom form at a glance. For example if you try to delete a custom field I created,, you get a prompt that the field you are trying to delete is being used by a form. If we could see that in the "new field" windows when managing, deleting or creating new fields, we would know immediately. I also like to do clean up as maintenance and delte fields no longer in use. If I could see that "at a glance" that "Field A" is not tied to any form, I know I could just delte it if I choose to do so.