It's in the Edit menu and it gives you 5 options, as you can see in this example below:
It's a very, very useful feature for fixing or manipulating large amounts of text at a click of a button
The Sentence Case for example, is intelligent, in that it only capitalises the first letter of a sentence, no matter what line it is on, if the previous sentence ends with a full stop.
How about including this into the next version of MyInfo?