Editing Keys

When Windows Git is waiting for input from the user, the following keys have special meanings:
Delete Delete the character under the cursor.
Backspace Delete the character to the left of the cursor.
Home Move the cursor to the start of the input line.
End Move the cursor to the end of the input line.
Cursor Left Move the cursor to the left.
Cursor Right Move the cursor to the right.
Cursor Up Show the previous input in the input history.
Cursor Down Show the next input in the input history.
Ctrl+Cursor Left Move the cursor to the start of the current word, or the previous word if already at the start of a word.
Ctrl+Cursor Right Move the cursor to the end of the current word, or the next word if already at the end of a word.
Tab Move the input focus to the next window which is waiting for input.
Shift+Tab Move the input focus to the previous window which is waiting for input.
Ctrl+Pause Halts any speech currently being spoken.
Ctrl+V Paste the contents of the clipboard into the input line.
Alt+Enter Toggle full screen mode.

The hotkeys assigned to menu items are given here.