Glad to see you in the Community, @adilraja1.
Currently, there isn't an option to customise a delivery note in QuickBooks. You can only print the default template in our system.
I can help send this as a product request to our developers so they can consider this idea in the future updates.
For now, you can visit our QuickBooks Blog to keep you in the loop of our latest news and what our Product Team is working on.
I'm always here should you have other questions or concerns. Thanks for dropping by.