Customising statements

Hi - I'm a new user and Zoho Invoice has been a great way to prepare and print invoices.

Now it's time to chase payment, I'm afraid the customer statement function is not as strong, although this could be fixed easily if there was a way to customise the template in the same way as invoices can be customised.

I really only want to make a couple of changes:

1, insert the word "invoice" immediately before where the invoice numbers appear on the statement.
2, add a payment slip at the bottom of the invoice for the customer to send back with their payment.

Is any of this possible?

Thanks

Graeme