I'm working on a timeline in VP 13. I was trying to adjust a cross fade between two events on the same track. All of a sudden the whole workspace changed. That track split into two subtracts labelled A & B with a transition symbol joining them. How do I get rid of this? The preview window also changed taking up the entire screen above the timeline knocking out everything else. I tried resetting to the default workspace view as well as undoing all my changes but I can't get rid of the A>B subtracts. I can't find anything in the help menu either. Any ideas?