Song Composition Return Button?

I am inputting a song and want to move the cursor to the next line - rather than splitting a measure between lines. How do I do that? (Like hitting Return on an old-fashioned typewriter.)

Thanks in advacnce - I love IRealb! :D

Next to the Chord button at the top of the input buttons are a left and right arrow. Did you try those? Also you can just tap where you want the cursor to be.
Slightly related: a barline can be put either left or right of any cursor space/beat; and you can Insert or Delete spaces.