Hello,
1) Please describe the desired result in more details.
Use Lightshot screenshot tool https://app.prntscr.com/en/index.html to share screenshots, it creates a link to the image and you will just send us that link.
2) There is no such popup, check our demos.
You can disable “AJAX add to cart for simple products” in Theme Options > WooCommerce (Shop) > Single product page > Single product layout.
3) Please read this article – https://xstore.helpscoutdocs.com/article/102-wishlist Correct functionality of the wishlist you can find on the demo – https://xstore.8theme.com/
Regards