There’s not an actual crop tool. But you can crop your whole animation by changing the resolution in Scene Settings.
So, as an example, you have a HD scene (1920×1080) and want to crop off some unused space along the edges, you can type in a lower resolution/size, let’s say 80%, which is 1536×864.
After this operation you can scale right back up to HD, so your output still ends up at 1920×1080, but you keep your cropped framing. I hope this makes sense?
This method of course only works with a centered crop. If you need to crop a smaller part in like one of the corners, you can’t easily do that and you have to move drawings manually.
I am on vacation right now, so I don’t have Animation Paper in front of me, so everything is by memory. 🙂 But I think you can make a scene have many frames from the beginning. So instead of starting with a 1 frame scene, import audio, and then add clones – you can start by making a New Scene, set an approximate number of frames, then import audio, and adjust the number of clones if needed. That must be a much faster workflow.
Let me know if you want me to explain anything better?
Best,
Niels