I have a few immediate questions that I hope you can help with before I sign up:

Subtitle Issue: The tool currently struggles to capture subtitles correctly when I speak Cantonese (Traditional Chinese). Right now, the subtitles are displayed as blank or rectangle boxes. Is there a way to fix this, or an option to disable subtitle auto-generation so I can add and edit them separately?

Background Removal: Is there an option to hide or replace the background of my portrait video?