I am trying to make 050 Library of Congress Call number to be used.
 
From "parameters" >> "Biblio framework" " >> "MARC structure", I know 050 is there. However, if I select "display only used tags/subfields". 082 Dewey Decimal Call number shows. Is there anyway to disable 082, but enable 050 LCC call number?
 
or I have to change the PERL source code?
 
 
Thanks,
 

YH