For some fragile items that we don't want to put in transit (e.g. telescopes, vinyl records), we want to be able to limit check-ins to the owning location. We can communicate these limits to patrons on our website and through signage or labels, but we'd like there to be an option within Sierra to generate a pop-up (with an option to override) so staff are alerted to tell the patron they have to bring the item back to another location.