How to show GST AMOUNT S$ for each invoice line item

I need advice how to format the QB Tax invoice to show for EACH LINE ITEM:

1.   (1.1)  Product Description    (1.2)  Quantity  (1.3)  Price bef GST  (1.4) Item Tot bef GST (1.5) GST S$ Amount      (1.6)  Item Tot Aft GST

2.  Invoice at TOTAL Level to show:

     2.1    Inv Sub-Total before GST

     2.2    GST Amount in S$

     2.3     Inv Sub-Total after GST

In the Invoice form style,  I selected GST but it shows me the GST Code and NOT THE GST AMOUNT IN S$

Also, the Subtotal,  I cannot change to Subtotal before GST and the Total, I cannot change to Total after GST.

Please advise how I can format it to meet Singapore Regulations and also Customer requested for us to show these fields