I was using the default search engine settings of the Softaculous 12.3 installation before, but I do not have a list of what they were. I did not make any changes then because I did not understand much about them. It was for me a case of 'if it works, don't fix it.'
There seem to be a lot of settings so I have taken a snapshot of what they are now.
Please advise if you need any further information.
Always pleased to help to improve the product.