Multiple taxes

Hi,

I might have missed something by mistake, but I can't find an answer anywhere.

In the product details at the bottom of an invoice there are a few fields for "Tax".

One field after "Sub Total" (Which I can edit for specific products successfully)

And there is one for every separate product added. It is these which I cannot add tax for.

I want this tax to be one of five choices.

The lower tax field will always be 10%.

Please get back to me if you can help.

Thanks in advance,
Adam