It feels odd to me that the tab 'headers' (or titles if you like) are right at the top of the window with the address bar etc. and the bookmarks bar between them and the actual tab contents.

Is it possible to rearrange things so that they're nearer to the actual things they refer to?

I'm a new user (of Opera) so I may be missing the obvious.

However, I can't see any way to change the search box on the start page. It can be turned on and off in the Advanced settings but it seems that only Google is possible.

I have changed my default search engine (to DuckDuckGo) but this doesn't seem t affect the start page box.