Hi webcrazyinnovations ,
Thanks for reaching to us.
I kindly recommend you to build Custom Product layouts, which is built with WoodMart WooCommerce builder, then and create new layout for specific Product Categories only > then you can remove HTML Block from category https://ibb.co/SRsHhTJ > and inside the layout, you can use HTML Block to insert into new Row.
I helped you to create demo layout, you can see here:
https://mediumorchid-goose-284152.hostingersite.com/wp-admin/post.php?post=11386&action=edit
https://mediumorchid-goose-284152.hostingersite.com/product-category/mattress/orthopedic-mattresses/
Further, you can read more about the Layout Builder here: https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
Regards,
.
