VAT Receipt??

Is anyone aware if you are able to program or force the till to automatically print a VAT receipt?

I have searched the User Manual, Managers Manual and Vendor Manual, i can see how to program a button (which has to be pressed) to tell the till to generate a VAT receipt, but not how to get the till to do this automatically.

At the moment, i have set the VAT button up, but have to press it every transaction to produce a VAT receipt.

Anyone have any ideas??