Automatic regeneration of transcripts with new vocabulary

If you have added vocabulary, there should be a way to recreate a transcript without having to re-upload the video. Especially after a change of platform, when you already start with over 100 videos, it is super tedious if you haven't trained the AI with a lot of vocabulary at the beginning. The main issue here is the quality of the chatbot, which then can't find content from older videos because the transcripts don't contain the right words.