Let's learn how to undo and redo our editing before we move on. We can undo with the following commands: u - undo the latest change 3u undoes the last 3 changes U - undo an entire line We can use a "redo" key to redo the undo: ctrl+r - redo Try making some mistakes in the text here and reverting back to original changes. Review Questions: 1) Insert a #2 review question below. 4) Now insert a #4 review question above. Solutions: 1) "o" 2) "O"
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