Thank you!
1. Unfortunately, it is not working for me, before I’ve already tried the inclusion option… pls, take a look a test site
2. It works
3. It works
4. Not working at all, I can not even set it (( I made the new search instance “main search”, then I have turned on the trigger “Override the default WordPress search results with results from this search instance?” in General Options – Logic & Behavior…
but nothing changes…