How do i send a copy of say 6 invoices at once

Hello Alex-alex-co-com, 

Welcome to the Community page,

If you click on sales on the left hand side navigation bar>the click on invoices> tick the little boxes on the invoices you want to send off on the left hand side next to the dates> then click batch actions at the top left hand side> the select send. It will then send of the invoices you have ticked to the customers.