Recently I filmed an event with 6 cameras. The filming lasted for about 3 hours, so that's 18 hours of footage. Now I need to edit the footage from each camera into one 3 hour video (for different angles). And rather than cutting pieces out of each source (which would take a long time) I was wondering if there's some kind of software where each source plays at the same time in a window, then I just hit a key to send which source I want to be using to a "master output"? So say I wanted to have angle A currently being shown then cut to Angle B, I could just hit a key and then that would happen on the master output which is being recorded into the 3 hour video.
Sorry if that doesn't make sense to anyone, I'm new to this.