Accountright emailing statement with variables

Hi

I have customized our customer invoice emails with variables as below

Hi
Please find our invoice #{{invoice_number}} for {{invoice_total_amount}} at your store {{customer_business_name}}
Please contact us immediately on xx xxx xxxx if you are unable to detach or download your Invoice. Thank you. 

For customizing customer statement emails I don't see the ability to customize the email with

for {{statement_total_amount}} for your store {{customer_business_name}}.

Is this possible ?