The section of the Koha manual that describes classification filing rules appears to be missing a section. The portion that describes the respective rules for Dewey, generic, LCC, ends abruptly when it gets to LCC, as follows: "The LCC filing routine generates a sorted call number by following these rules: " [no rules are given] See, https://koha-community.org/manual/21.05/en/html/administration.html?highligh... Anyone know what text goes there? Also, has anyone created custom filing rules? Although I can create a new classification source, it looks like a new source can only be an amalgamation of the existing filing and splitting rules. What I really need is something that does not remove hyphens. I'm having a heck of time getting numbers like this to sort correctly (they just don't): 1F-15A-1 1F-15A-01 (I'd expect this to be first) 1F-15A-1CL-1 1F-15A-06 (This should go after "-01") 1F-15A-6 1F-15A-6CF-1 1F-15A-17 1F-15A-21 1F-15A-4-6 (I'd really like to see this before "-6") The above is how they sort in the OPAC using an ascending "Call number" sort. Assuming all hyphens are stripped out, I can't make sense of the sort. However, I did notice that despite all of these items having classification scheme set to "generic", the "Other/Generic Classification Scheme" in Koha Administration, Classification sources, showed that the "In use" value for that scheme was "No". I changed it to "Yes", but am not sure what to expect after having done so. Tasha Bales Enterprise Services http://isesi.web.boeing.com/