A forensic video expert and a woman who said Sean “Diddy” Combs dangled her over a balcony took the stand Wednesday in the Hip-hop mogul’s federal criminal trial. The testimony came as the prosecution has sought to prove Combs and some in his inner circle constituted a criminal enterprise that used threats, violence, kidnapping and other means to coerce women into “Freak Offs” with male escorts and to protect his image.