IMHO the default skin takes too much space and I don't like that much of wasted space on my laptop screen. Why to use so high tabs and so wide border above and below address bar? 2 rows on top of the screen could be almost 2 times smaller and that would be a big benefit. Only good side I see that it now has smart card support but as I have more visible space in chrome then it's questionable I will keep using it.
Unfortunately in years of development Opera has transformed to simple Chrome and lost all the nice features that made it special and better than others - great sidebar, mouse gestures and skins. Tabs were way before IE and Chrome, luckily they kept those and probably only because of everyone started using them :rolleyes:
If you are checking the help page "keyboard shortcut F1" from opera 12 then you only get information related to opera 12. Presuming that you also have opera 30 installed, its' help page will only deal with version 30. Both operas are separate installs.
A long time ago, I imported to my toolbar a PrintPreview button from somewhere that acts as a toggle: press it and preview appears, press again and it disappears. Unfortunately, the source for that button is lost in time. However, realizing that the keyboard combination CTRL+SHIFT+P activates PrintPreview as well, those same keys can also be used to toggle it on or off. It isn't quite as "clean" as a toolbar button, but it's less hassle that going back through the menu path.