Position the insertion point where you want the line break to occur.
From the Insert menu, choose Spacing and then choose Break.
From the Break dialog box, choose the line break you want:
Break
Action
Newline
Starts a new line at the break
Linebreak
Starts a new line at the break and fully justifies the text on
the line
Custom newline
Starts a new line at the break after a specified amount of
vertical space
If you choose Custom newline, specify the amount of space to be added
and the unit of measure and specify whether it can be discarded at the end
of a typeset page.