The recent version allows adding custom content to the top of the shop page:
1. Enable Top filters in the Theme Settings >Product archives > Shop filters https://gyazo.com/3564df2a5d658a0010b6c0ebd0b537d4
2. Enable Shop filters area always opened
3. Shop filters content type should be set Custom content
4. Crate HTML block https://xtemos.com/docs-topic/html-blocks-usage/ and insert the Product category element and configure it: https://xtemos.com/docs-topic/elements-and-widgets/
5. You can choose the HTML block with the content from the Shop filters custom content drop-down.
If you have any questions please feel free to contact us.