Hi Manos Petridis. Now I can browse by hierarchy :) In my case, because we are Portuguese and work with UDC-Classification instead of Dewey-Classification it was a bit more difficult but it is solved. We use Unimarc. Because I don’t know if you work with UDC or Dewey I will give my example. 1: MAKE ZEBRA SEARCH BY UDC-Classification This explanation saved the day: http://wiki.koha-community.org/wiki/Understanding_Zebra_indexing#Another_rea... What I have done: (++ is to add) /etc/koha/zebradb/marc_defs/ccl.properties *Uncomment*: UDC-classification 1=14 /etc/koha/zebradb/marc_defs/unimarc/biblios/record.abs ++ melm 675$a UDC-classification /usr/share/koha/lib/C4/Search.pm → In: my @indexes = ( ++ 'UDC-classification', *I'm not sure about this part:* /usr/share/koha/opac/htdocs/opac-tmpl/prog/en/includes/masthead.inc /++ [% IF ( ms_UDC-classification ) %] <option selected="selected" value="UDC-classification">CDU</option> [% ELSE %] <option value="UDC-classification">CDU</option> [% END %]/ 2: BROWSE BY HIERARCHY Edit: /usr/share/koha/opac/htdocs/opac-tmpl/prog/pt-PT/modules/opac-browser.tt *Change*: a href="opac-search.pl?q=Dewey-classification: *For* : a href="opac-search.pl?q=UDC-classification: *Edit:* /usr/share/koha/bin/cronjobs/build_browser_and_cloud.pl and change to your your lang and framework field: if (C4::Context->preference('opaclanguages') =~ m/^*pt*/i && $browser_tag eq *'675'* & $browser_subfield eq *'a'*) { In the same file, build_browser_and_cloud.pl, you need to change *ALL the French classification* to yours. *It is done!!* Than just rebuild /build_browser_and_cloud.pl/ and voilá. (If it works put it in cron +/- 2 times per month ) But, there is a little issue with this, it should have right and left truncation... maybe in the next version :) Example: If you click on 322 the search will find everything with 322, in the beginning, midle or end. But you can search writing this: /UDC-classification=322 and UDC-classification,first-in-subfield=322/ This will search everything starting by 322 I steel cant get the classifications names just the numbers, but, for now, I'm happy. About your problem *Can't locate C4/Context.pm in @INC* Someone in this forum found this solution: Copying C4 directory to /etc/perl/ should solve your problem: cp -a /usr/share/koha/lib/C4/ /etc/perl/ Hope it helps, José Anjos ----- Koha version: 3.08.04 - - José Anjos -- View this message in context: http://koha.1045719.n5.nabble.com/Browse-by-hierarchy-Links-not-working-tp57... Sent from the Koha-general mailing list archive at Nabble.com.