Is there anyway to do this? If so where can I modify the theme to do so? For example, I would like to use https://wordpress.org/plugins/woocommerce-login-popup-and-shortcodes/ and when my customer clicks on the button, the popup comes up. Let me know if this is possible, thanks
Sadly there is not a feature out of the box to do this. Meanwhile, I have tagged a feature request to your topic, so other people who might be interested in having this functionality can vote for it.