In the table of items under a record, the filter on status created by Bug 37334 does not meet all the needs of a library because it groups together many different scenarios (in processing, on order, etc.) under a single status, "Not for loan." It is not possible to use this filter to isolate items on order, which is a frequent use case. I don't know what would be the best way to improve this filter. Perhaps we could add the different specific statuses provided for each value of notforloan<>0, prefixing them with "Not for loan" so that they appear close together - Excluded from loan (being processed) - Excluded from loan (on order) - Excluded from loan (non loanable itemtype) etc. And keep the global "Not for loan" renamed as "Not for loan (all reasons)".
Or create a new column for "not for loan" ?
Not sure... The table is already very wide (and Koha handles this poorly in terms of UX, with screen overflow), and we've just added a new column for locations.