Normally when I doubleclick between two clips I can choose the default transition, but now, all that happens when I double click is that a menu appears with the first two commands being "clip time" and "source time", underneath these several others follow, but not the option to add a transition, why? I do have enough material on each side of the place where the transition shall appear, so the issue is not that. Anyone knows what to do? yours Jackdaw p.s. I cannot add a transition using the normal menu either.