DDJ-SB2 Back Button

I have a DDJ-SB2 and have been using it for a few months now. One thing that I cant seem to figure out for the song selection process is how to go back out of the current crate I am in. So I use the knob to find my crate, push down on the knob to explore the crate, but don't know how to go back. I am using my mouse for the time being but I am hoping that there is another way. Thanks in advance.