Just to clarify, if it's an e-file return, and you set up the items to print in the Gov't copy to be

Federal e-file Signature Form

Federal Tax Return

State e-file Signature Form

State Tax Return

Then when you print the Gov't copy you'll get:

The 8879 - & state applicable form

Payment vouchers for fed & state for the current year

Estimate vouchers for fed and state

You won't get a copy of the tax return, just those forms.

I've opted to have the instruction letter and a copy of the invoice print in the Gov't copy also.  I'm not sure, but I think that's what you're trying to accomplish?  I think you're just trying in the wrong print module.