I was looking for something else and found this post. (I don't know how, in these forums, to link to a different post, so I've copy/pasted the text.)
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To insert a LINE BREAK
If you want to put two verses on one screen, or divide a verse into two sections, you can do a line space by holding down SHIFT + Enter (Enter on its own will not add any space on the actual view.
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Similarly, if you want to INDENT TEXT:
Hold down shift + space bar for the same number of times for each line.
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In this way you can indent a chorus, and separate it from the verse by a line, thus making the whole thing more legible.