Say I have a project that I've done in 30 FPS.
I now want to re render it for final use at 60 FPS to match my destination project (shot at 60fps).
My current project (at 30FPS) is 2 seconds long. Of course, if I set the project to 60, it will need double the frames. So my current 60 frame project must be "expanded" to 120 frames. If I have key frames at, let's say, 15 and 30 frames (I have more too), is there an easy way to just tell it to scale all the key frames to fit my new project length and frame rate?