I found that by using the keyboard path it was pretty straight forward.
{ALT + S} > g > n – will display the annotations, but I wanted a faster way.
So i created a shortcut.
File > Settings > Keymap > Main menu > VCS > GIT > right click annotate and ‘add keyboard shortcut’ – I used {Ctrl + Alt + z} since that didn’t conflict with any I already had.
Hope that helps