Rather than reaching for your mouse to click on the toolbar, use these access keys. Windows and Linux use Ctrl + letter. Macintosh uses Command + letter.

Letter Action Letter Action
c Copy v Paste
a Select all x Cut
z Undo y Redo
b Bold i Italic
u Underline 1 Heading 1
2 Heading 2 3 Heading 3
4 Heading 4 5 Heading 5
6 Heading 6 k Insert/edit link

The following shortcuts use different access keys: Alt + Shift + letter.

Letter Action Letter Action
n Check Spelling l Align Left
j Justify Text c Align Center
d Strikethrough r Align Right
u List a Insert link
o 1. List s Remove link
q Quote m Insert Image
w Distraction-free writing mode t Insert More Tag
p Insert Page Break tag h Help
x Add/remove code tag  

Focus shortcuts:

Alt + F8 Image toolbar (when an image is selected)
Alt + F9 Editor menu (when enabled)
Alt + F10 Editor toolbar
Alt + F11 Elements path

To move focus to other buttons use Tab or the arrow keys. To return focus to the editor press Escape or use one of the buttons.