Hi, I have a question about skipping events in JAS. I'm analyzing reconstructed tracks, and I implement the analysis as follows: public final class JetFinderTestV5 extends Driver { public JetFinderTestV5() { add(new TrackReco()); add(new TrackJetAna()); } } TrackJetAna is an analysis routine I run after tracks are found. One problem with this is that I'm only intrested in a subset of events satisfying some conditions (namely, that the ttbar event decays into the "Lepton + Jets" decay channel). So in events that don't satisfy these conditions, the CPU time spent on track reconstruction is wasted. Is there a way to add a filtering process before track reconstruction that tells JAS to skip to the next event? Gene