Section 529. Consolidated lien index

1. In counties having a population of
  less than five hundred  thousand,  the  county  clerk  may  install  and
  maintain  a  single  consolidated  index,  in  lieu of all other indices
  required by law, for the purpose of indexing alphabetically all liens or
  encumbrances affecting real property recorded or filed  in  his  office,
  except mortgages, lis pendens and judgments.
    2.   A  county  clerk  may  adopt  a  new  indexing  system  utilizing
  electro-mechanical, electronic or any other method he deems suitable for
  maintaining the indexes.