10.0

Start of story
+Option+Shift+
End of story
+Option+Shift+
Position text insertion point
One click
Select word
Two clicks in the word
Select word and its period, comma, etc.
Two clicks between word and punctuation
Select line
Three clicks
Select paragraph
Four clicks
Select story
Five clicks
Previous character
Delete
Next character
Shift+Delete
Next character (extended keyboard)
[Forward delete key]
Previous word
+Delete
Next word
+Shift+Delete
Selected characters
Delete