1.6.5.16.4.7.  Key "INDEX_SHOW_SEARCH_SETTINGS" - "Search settings" button on/off

Indicates whether the Search settings button shall be shown Default: "Yes".

When clicking the button the dialog box Settings with selected item search [Search] is opened.

[PARTdataManager]
INDEX_SHOW_SEARCH_SETTINGS=YES/NO

Even if the button is not displayed you can reach the setting options via Extras menu -> Settings [Preferences...]... -> Search dialog -> General tabbed page.