Hi,

Can somebody please help on how to create a custom button to Approval Process page layout.
the use case is: there should be a custom button on Approval Page layout with the name "Corrections needed".
Can somebody help on how to add the button to the page?
Please refer the screen shot below. the area marked in red should have the button:
 

here when I input unit price and quantity total price should populate automatically.

Thanks in advance!!

here when I input unit price and quantity total price should populate automatically.

Thanks in advance!!