This is the place where you can add a new product version for a product.
Clicking on Add Product Version on Product Details page will open this page.
There are 9 tabs for product version configuration:
After the information in 9 tabs above is configured properly, you can click Save button to save the new product version as draft and go back to Product Details page. The new product version can be found under PRODUCT VERSIONS list on PRODUCT DETAILS page.