Choose Settings from the Format menu.
Enter margins.
The default left margin is 0 and the right margin is dynamically set to the width of the Text Editor window. Margins are specified as a number of character columns.
Select left, right, justify (block style), or center alignment.
Determine the scope of the formatting:
To format a single paragraph, place the cursor in the paragraph, then click Paragraph.
To format the entire document, click All.
After closing the dialog box, choose Paragraph or All from the Format menu to apply the settings.