It depends what update it has in it. If it is before 9.4 you hit N from the pid screen and then there is a menu-select "custom datalist" or something like that.
If it has 9.4 in it from the pid screen go to the furthest right icon, hit Y and then select "custom datalist" and you can pick what pids you want it to show. To graph go to the left view icon and you can select from 1-4 screens.
I will admit the snap on scanners are a little hard to get used to, but once you have it down they are great.
If you get in a bind and need some help shoot me a PM and I'll give you my # to try and walk you through it.