Shortcut to apply header style 4 (and 5, 6...) In Microsoft Office Word, one press ⌘⌥1, ⌘⌥2 or ⌘⌥1 to apply header style 1, 2 or 3 respectively. This is also documented by Microsoft (see: Aligning and formatting paragraphs). However writing a large document, I want to apply header style 4 (and 5, 6...) but there does not seem to be a shortcut available for that. Applying header styles is not an option in the menu bar, so I cannot create a custom shortcut through System Preferences &gt; Keyboard (I suppose). How would I add a shortcut in this case?
Found it, although I did not expect the solution to be this simple. To do this, follow these steps:


Right-click the Heading 4 style in the ribbon and choose 'Modify' (Or through Layout > Styles > Heading 4 > Modify
In the left hand bottom corner, select 'Shortcut'
Assign shortcut ⌘⌥4
Repeat for Heading 5, 6...
Done!