I have 2 lines of games on my home screen (Shield TV) and noticed that a 3rd line has not been created as more games are installed. I just have to keep scrolling to the right to find them.

Is there a way to create a 3rd or 4th line so that more games appear on the home screen at once and I don't have to scroll to find most of them?
I thought perhaps a 3rd line would be created automatically like the 2nd line was, but that doesn't seem to be the case.