@modemjunkie If I understand correctly, you want the "web" tab on Google to be your default search? Can't directly be done in Opera as the search params are hard coded.
That said, you can go to the search settings and add a new search engine and mark it as key "gg", then enter you requested search string. I use:
https://www.google.com/search?q=%s&udm=14
that nukes aio. It is a pain to get used to, but it works.
