FontForge feature files and Python scripting

Dimas B. Nirwandhani asks, "Hi Fred, Does FontForge have code editors for editing or adding features manually? Code Editor for OpenType as manually. I meant, like on this video: https://youtu.be/q5QANKlMTcM?t=3m55s" Yes we do! In this video I briefly describe the format, how it works, and how to use it in your own fonts; I also show a new feature with the Execute Script dialog box.