Hello,
Thank you so much for contacting our support center.
Sorry, but we can’t see your website without username and password.
1. We don’t quite understand your question, what function are you asking about?
2. Of course, you just need to have products with customer reviews to see the stars rating.
3. Sorry, but this function doesn’t work with custom bulk discounts. It can be applied to products that have default WooCommerce sale prices, not custom values.
4. We suggest you to edit your files via FTP.
Kind Regards
XTemos Studio