From 7.0 version, theme doesn’t support YITH wishlist and we made our own wishlist which works faster. It’s enabled by default, but also, you need to create page where users will see their wishlist. So, create any page and add there shortcode
Next. You can add in header icon or menu item to show wishlist for users.
Wishlist Icon with counter is available if you choose “Shop/Comparison Header layout” in Theme option – header and menu option – header layout When you choose it, you will see additional field
Place url in this field to your wishlist page.
Also, you can place link to this page in your menu in appearance – menus. Check also how to add icon and right float to menu
And don’t forget to exclude this page from cached pages if you use any cache plugin
By default, wishlist first click will add product to wishlist. Second click will delete product. You can overwrite this logic and choose your page with wishlist in theme option – global enable – wishlist. In this case, second click on wishlist button will redirect user on his wishlist instead of deleting item from wishlist