Thank you for your valuable feedback. However, this course is not designed for those who can directly implement GAS files, but rather an introductory course structured for individuals new to automation and AI. It's true that the UI of AI-related tools often changes multiple times a day, and I also find it regrettable that the screen might sometimes look different from when the course was actually produced (1.5 months ago) and now. That's why I've uploaded over 5 additional lectures reflecting UI changes since the course opened, and we are continuously responding through the Q&A board and other channels to minimize confusion related to the UI or practice sessions. However, honestly speaking, the point you made about GAS alone being sufficient while simultaneously wanting more complex workflows in an introductory course seems to somewhat confuse the target audience and purpose of the course. We've received feedback from beginners that the practice sessions in the current course are sufficiently challenging and practical, and we believe the structure and difficulty level we provide are appropriate for those encountering n8n for the first time. (In fact, as the course progresses, the structure becomes more difficult, and many find even this level challenging.) Therefore, if you felt a gap between what you expected and the difficulty level of the course, I think a more advanced course or one focused on GAS-based automation might be more suitable for you. Thank you for your feedback; we always humbly incorporate diverse feedback. Thank you.