Size Chart on product page using Smart Product Tabs - use without attrribute value

Hi,

I used the smart product tabs for the existing manufacturer dropdown attribute and it works very well.

I'd like to use it for the size attribute but my needs are a bit more advanced than the example post.

My client has a wide range of clothing products and with various product sizes depending on product category e.g. chest size, leg length, shoe size etc.

Rather than having a massive single 'size' attribute, there's a size-shoe, size-waiscoat etc

Is there a way to use smart product tabs at parent level, rather than creating a new attribute to add the size chart?

e.g. for 'smartproducttabs_size' and not 'smartproducttabs_size_xl'

or one block for smartproducttabs_size_4xl-3xl-2xl-xl-l'

I've also looked at trying to use a Magento widget. So I can add the size tab block just for products in x category.

Thanks

Andrew