Hello, @TFS,
Unfortunately, No, this is not possible, as that is the sidebar and you can not change it for different products, that is set as global from Xstore >> WooCommerce >> Single Product Builder >> Layout: https://postimg.cc/JGq0RRfH
If you want to set that section differently for the different products, then you have to remove that sidebar and add the different Custom HTML blocks for the different products by creating multiple single-product page layouts.
Regards 8Themes Team.