Hi I was wondering if it is possible to have a print envelope tab to pick up on the customers or suppliers address.

Not sure what you mean by this. Can you explain a bit better what you are trying to achieve?

I print my invoices for my customers and then go into a different program to print the addresses on the envelopes to post these out, not all my customers have email so I need to use the regular postal service. If in Manager there was a tab like the email tab called print envelope which would pick up the customer or suppliers postal address then I could do it all from within manager, even if there was a separate tab on the left column in the main screen which was called envelopes and when you opened that up you could have check boxes to select multiple suppliers and customers to select in which you could print the addresses on the envelopes.

Why don’t you buy envelopes with a “window” like this:

This way you just insert the invoice into envelope and billing address will be visible. No need to print labels separately.