Return to where you came from

Pedido

At the moment, if I go in to a clients details and then look at an invoice. Once I have finished with the invoice I am returned to the main invoice page. I must then go and find the client again and then go to the invoice section and find the next invoice to work on. Please can you make it so that if I enter an invoice from a client screen that it returns to the client not the main invoice screen.