Advanced Retriever Options dialog

This dialog opens when you press the Retriever's Advanced... button. The button is only enabled if the Create Index check box is selected (default) in the Preferences Retriever view.

Checkboxes

Use Index | Toggles whether the Retriever index is used for queries. See also Indexing and caching.
Search All Indexed Files | Searches all files indexed in the current Working Environment, regardless of which (sub)projects are currently loaded. Note that this includes also files in subprojects that are physically outside the current Working Environment (e.g. libraries) that have been added as subprojects to projects within the Working Environment. See also Retriever index files for more information.
Show Only Similar Words | Lists all indexed words containing the queried string (case-insensitive). Regular expressions can be used to restrict the list to substrings that appear at the beginning (e.g. \bmystring ) or end (e.g. mystring\b ) of a word.
Cache Files In Memory | Toggles whether queried files are cached in memory. See also Indexing and caching.
Show Only Similar Words | Lists all indexed words containing the queried string (case-insensitive). Regular expressions can be used to restrict the list to substrings that appear at the beginning (e.g. \bmystring ) or end (e.g. mystring\b ) of a word.