How to Move multiple keyframes at the same time in Final Cut
You can use the motion bar and the filter bar in clip keyframes to move all the keyframes in a clip at the same time. Whether you're new to Apple's Final Cut Pro non-linear video editor or just looking to pick up a few new tips and tricks, you're sure to benefit from this free video tutorial. For specifics, including detailed instructions, watch this Final Cut Pro lesson.
You can also move all the audio level keyframes in a clip at the same time using the slip tool on the graph in the viewer.