ConQuest Help

Build the query as usual and hit Search. Then hit the Select Subset button in the Search Setup dialogue box.
Select either Entries in saved search file or Entries in saved refcode list, depending on whether the subset you wish to search was saved in native ConQuest (.cqs) format (see Saving and Reading Searches) or as a list of refcodes (.gcd), respectively (see Saving Individual Structures and Lists of Structures).
Click on the Browse button and select the required file
Hit OK when the subset is loaded.
Hit Start Search to begin the search. The resulting search will find all the entries in the saved search file or refcode list that satisfy your new query.
Hit Clear Subset when the Search Setup dialogue box is next opened to revert to searching on the complete database.