Csak el kellett volna olvasnod a linkelt oldalt:
"The Opera Bookmarks bar is located directly below the Address bar, and replaces the old Personal bar.
(...)
If you want the Bookmarks bar to show in the former location of the Personal bar
Open the Appearance dialog (Shift + F12) > "Toolbars".
Click "Show hidden toolbars while customizing".
Above the Address bar a Bookmarks bar appears. Click it once to mark it (a yellow outline will show around the bar).
Click "Placement" and select "Top" inside the Appearance dialog.
Mark the new Bookmarks bar located below the Address Bar, and choose "Placement Off".
Click OK.
The Bookmarks bar is now shown in the former location of the Personal bar."