I happen to have my manual handy (but took a lot of searching!) and the Pattern Sequence (page E-109) says up to 16 measures (up to 2 only for fill-in)

I'm hoping Casio puts up more videos, as I'm finding it to be a bit of tough sledding, not having played with a keyboard before. I'd like to create a pattern(s) to accompany for Aloe Blac's "I need a Dollar" but this does not appear to be a simple task.

Can someone explain to me what exactly "Styles" is referring to for a keyboard.