BlackBerry Q10 handset is the first BlackBerry OS 10 release with a physical QWERTY keyboard feature that characterizes BlackBerry. Afterwards there will be a BlackBerry handset Q5 which is a cheaper version of the Q10.
Different from the old keyboard shortcuts in BlackBerry, there are a number of changes made in the keyboard shortcuts in BlackBerry 10 handset. Fortunately, the BlackBerry has been easier for you to know all the keyboard shortcuts that can be used either in Q10, Q5 or 10 other BlackBerry handsets that will be released later.
To know the keyboard shortcuts, while in the BlackBerry Hub, in the browser, or other application, please go to the options available on the right. There you can see a number of actions that you can do but if you look more closely, you will see small letters next to each of these actions. And that's the keyboard shortcut you need.
In addition to the above, you can also see a complete list of BlackBerry 10 QWERTY keyboard shortcut here.