Problem:
I intend to copy the same content of the original products in other languages, but the problem is that if I go through WooCommerce Multilingual, I have to translate the products one by one. How can I bulk duplicate them?
Solution:
Go to WPML > Translation Management > Translation Dashboard.
Under the "Select items for translation" use the filter to select your products.
Under the "Select translation options" set all languages to "Duplicate content".