Multiple Tax rates using open item or Mods

We have several merchants who want taxes broken out, not one rate, city state and sometimes county rates. When this is the desired configuration the open item or mods buttons do not automatically apply all the tax rates set. The default option esp in a restaurant setting should be to select all taxes and force the user to unselect if necessary because other wise an open mod or open item can result in taxes NOT being collected properly causing a financial loss to the merchant if the server forgets.