WooCommerce -> Uni CPO General Settings
admin page and (re)define global plugin's settings. Quite possible that the default values of the settings work just perfect for you/in your theme. So you actually do not need to change anything. However, it may happen that your theme uses custom main product image or price wrapper/markup on a single product page, therefore you have to set a new CSS selector (or both selectors) to make everything works properly.