Text Editor lets you set margins by specifying the number of characters and spaces that a line contains. For example, you can specify that a line can contain 50 characters. When you have put more than 50 characters or spaces in a line, Text Editor wraps the next character or word to the line below. This is helpful when you do not want to keep track of the length of a line. It also does not require you to press ENTER to go to a new line. You can change the margin size by changing the number of characters that a line contains.
To set or change a margin
1. Click Options, Preferences.
2. Type a number in the Wrap Words At box.