block holds depending on circulation status
There should be an option to block patrons from placing holds on items if there is only one owning library and the circulation status of the item is listed as missing or in storage. While in storage items should be visible to patrons in the OPAC since sometimes that item can be taken out of storage if a patron wants it, they shouldn't be able to place a hold if there's only one owning library and their only copy is listed as in storage. Like withdrawn items, missing items simply shouldn't show up at all for patrons as an option.