Set default search source


How to change the default search source for Related Search control on the incident form from default value "Knowledge & Catalog (All)" to "Knowledge Articles"


OOB "Knowledge and Catalog(All)", is the "Searcher" which Incident is using - /
This searcher has 4 search sources are Knowledge Articles, catalog items, Questions, Pinned Articles.

enable_search_source is being evaluated from script include "cxs_TableConfig" - /

Line 126: tableConfig.search_on_tab = false; // hard-coded default value. It will be updated from context after page loaded
Line 127: tableConfig.display_dropdown = (this._gr.enable_source_selector) ? true : false;

Its hardcoded and not possible to change the default value.