[Closed] PokerTracker Help

Currently using the PT3 trial version, good piece of software, but got a couple of things I can't work out how to do (if it's even possible)!

When I first got it, I played a few MTT's and and SnG's and they've obviously been tracked into my statistics. I've recently started grinding out the low level SnG's now using BRM, but when wanting to view the graph section, it's taking into account all results, including the results in the MTT's (which I didn't do too good in ).

My question is, is there any way to make a graph out of just the SnG's i've been playing? I've had a look around, but can't find how to do it. And things like the miniFTOPS tourney I didn't cash in is really bringing it down.

If there is no way of doing this, is there any way of deleting statistics from my database? So I could take off the MTT results out of the database for example?

Thanks