I want to crossfade 2 clips but the 2nd clip has no audio, so I want the audio from the first clip to continue playing throughout the 2nd clip. Must I put the audio on a separate timeline, or is there another way to do this?
Put the playhead anywhere in the transition, then go to Properties. You’ll find a slider bar to adjust the audio mix.
Actually, you need to click to select the transition. Properties and Filters reflect selection and not the play head! Otherwise, your answer is correct.