Thank you!

And how about the commandes and bon de livraison?

Hi,

You will use the external ID of the required action and set it in your new menu. 

The below is a menu in your custom module to call Action of customer invoice. 

<menuitem id="menu_customer_invoice"
          parent="id for parent menu"
          action="account.action_invoice_tree1"
          sequence="50"/>

The below is a menu in your custom module to call Action of vendor Bills. 

<menuitem id="menu_vendor_bill"
          parent="id for parent menu"
          action="account.action_invoice_tree2"
          sequence="60"/>

Thanks