A family of Microsoft word processing software products for creating web, email, and print documents.
As Igor has demonstrated, the dialog box lets you choose what to compare, but you must always include, at the very least, insertions and deletions. My example below is showing the Combine Documents dialog box, which works the same way in this respect.
For further customization, you can change how the markup displays, by changing the options in the Advanced Track Changes Options dialog box. On the Review tab, click the dialog launcher icon in the Tracking group. Click Advanced Options, which opens a dialog box that provides full control over the display of tracked changes.