Add discount column to zoho books quotes

I've added the discount column to zoho book quotes per the below. It shows on the template preview, but when I save it and go to quotes it doesn't show up on the quote or pdf. What do I need to do?

Attached is the template preview, but the discount column doesn't show on the front end quotes. If anyone could please help, it would be appreciated!

Go to Settings

Select PDF Templates under Customization

Select the module for which you want to enable the discount option

Hover over the template you want to edit and click Edit

Go to Table on the left sidebar

Check the Discount option

Click Save