[fellars]

Originally Posted by chaley

• Set the tweak (Preferences / Tweaks) "Allow template database functions in composite columns (ID: allow_template_database_functions_in_composites)" to True, as in
  

  allow_template_database_functions_in_composites = True

• Create a "Column built from other columns" that uses the template
  

  program:
  	if $series then
  		book_count('series:"=' & $series & '"', 0)
  	else
  		''
  	fi

  Set Sort/search for the column to "Number"

Thanks so much for this....I really appreciate the help!