VIP records the previous modifying command, so that it is easy to repeat it. It is also very easy to undo changes made by modifying commands.
Undo the last change. You can undo more by repeating undo by the repeat
command ‘.’. For example, you can undo 5 previous changes by typing
‘u....’. If you type ‘uu’, then the second ‘u’ undoes the
first undo command (vip-undo).
Repeat the last modifying command. Given count n it becomes the new
count for the repeated command. Otherwise, the count for the last
modifying command is used again (vip-repeat).