1) http://prntscr.com/n9kpnd http://prntscr.com/n9kpsy https://youtu.be/1Nu49dskD1Q 2) You can use this code to hide the SKU:
.product_meta .sku_wrapper { display: none; }
3) Dashboard > YITH > Wishlist > “Add to Wishlist” text.
Regards