First you want to open the back panel on the guitar (I think you need to unscrew it off, not sure about the Universes.) and you want to screw the screws in (clock-wise). Make sure you screw both in at the same rate so they are even with each other. You might want to tune down your guitar a bit before doing this, because it allows for some compensation when the bridge gets tightened. It's also much harder to screw in if your strings are really being stretched.
So de-tune your guitar a bit, and screw the 2 screws located in the back into the guitar. Make sure that you do this so that your bridge is neutral when in tune. So make sure that if your bridge looks aligned, that you're also in tune. Because if you're sharp and your bridge is neutral, it will sink down in the guitar if you re-tune.
Once you're done that, you can mess with the bridge height to adjust the action. But you always want to first make your bridge neutral.