Variable Tax rates at checkout?

Colin_OH
Shopify Partner
20 0 3

I've a shop that sells both products and services, which are calculated at different Vat rates.

When using the pos "Quick Sale" button I am forced to charge 23% vat based on my POS location.

But if we repair a product, the labour/fitting is a service which is charged at 13.5%.

I can set up product collections with Tax overrides but this is only for products and not Quick Sale.

Is there any way I can select the VAT rate when using the Quick Sale Button?