Maybe I'm missing this, but is there a way to duplicate or copy a keyframe? If I want to change the values of the very first keyframe (e.g., for captions) to match a setting/adjustment I made for later one, the only solution I've found so far is to go into each parameter, copy it, and paste it in the same box in the first keyframe's parameters. Seems there should be a faster way to do this. For example, on Mac, right-click on a keyframe and copy all its values and the paste them into the values of a different keyframe. Or option-drag a keyframe to make a duplicate of it. Any suggestions?