I opened the shop page and then clicked on Swift Page Builder. Then, I clicked on Choose Elements and selected the Products element. Then, updated the page.
Unfortunately, we cannot assist you more on that as it is out of the scope of theme support. All the permalinks structure is controlled in WordPress permalinks area as Mohammad said.
You can do as advised by Rui above. We can just give you the right directions how to do it as it is a major customization work than a small customization. While we’d love to be able to support every customization request, we simply don’t have the time to do so. We recommend that you should enlist the help of a web developer if you need that functionality, potentially from one of the below resources:
