Taking screenshots with Mac keyboard
Solution 1:
As there is no PrintScreen button on a Mac Keyboard,
- Go to
System > Preferences > Keyboard Shortcuts - change the shortcut to your favourite one.
Solution 2:
Open the dash and type "screenshot" you'll be prompted with an app, with a photo camera icon, that will let you take different types of screenshots. You can grab the whole desktop or grab the current window or Select an area to grab.
While that app is open right click on it's icon in the launcher and select "lock to Launcher" to keep it there.