If you press Alt it opens the menu in keyboard mode every option has a letter underlinedThanks, created 't ctrl shift' for new private tab/page.
For a private tab pressing Alt t e in sequence opens a private tab.
The Alt menu is great in full screen pressing Alt e t s switches on the status bar which i have modified into a address bar/status bar with several buttons added.
F11 to go to Full screen, F2 to enter a address or search, F4 toggles the Panels, Ctrl B opens the bookmark panel.
There is a great translate button from Google you can drag & drop onto a toolbar press shift key before dropping.
http://translate.google.com/translate_tools one press & it translates the whole page.
User Java script
http://extendopera.org/userjs?tid=All
custom buttons most still work
http://operawiki.info/CustomButtons
How to block Ads
http://www.makeuseof.com/tag/block-advertisements-opera-browser/
Don't forget to Alt a to open the appearance panel click on skins then get more skins.
In Panels turn on the panel Toggle
Loads of Options in Toolbars.
And if you have trouble with a Page loading right click & select edit preferences then network mask as Firefox or right click & open with another browser.
Have fun.🙂