Here’s the video that will guide you through how to download and start using Screencast with Fusion 360.
Here is an example of how we’re already using Screencast to answer your questions! Full video with the timeline feature on the Screencast website here:
https://screencast.autodesk.com/main/details/c3a26eaa-4e93-4277-9f4d-d4cee9cd6538