I need your help. Its my first time when I use woocomerce in WP and I don't know how to add custom button. On public product view I must add button with link to selected wikipedia page. On private admin product view I need custom url or text field in (wp-admin->product->add product).
Okey now I create custom field and taxonomiex but I don't know what next. I tried to find some tutorials but I did not give advice.