In the Timeline if the “Show Keyframe” button is selected you can select a keyframe and hold down the command key and select more keyframes. In this view you will only see one keyframe that represent everything. Like the X, Y and Z position. If you only want to move the X position. Go to the keyframe Editor and you can drag and select multiple keyframes. You can also make only certain keyframes visible such as only the Z and Y position and move them. Hope this helps and best of luck.
Stephen Smith
Utah Video Productions
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