I think you may need to explain what you are looking for / expecting in a little more detail.
There's too much being left to the imagination
Screen shot 2016-02-09 at 9.56.08 AM.png
Looking at the above screenshot, I notice that your layout is in form view, when perhaps you are wanting it in List view so that it shows all the records in the found set as rows, which should then match the last screenshot.
Screen shot 2016-02-09 at 9.55.18 AM.png
This one, I presume is the preview / how it outputs, is this what you expected?
Thanks for your reply
The 9:56 AM screen shot was the preview view. It shows multiple lines of “Items”. When I print it, it prints 2 pages with 9 “Items”. There should only be one. The 9:55 screens shot was the Layout version Which according to the rulers should be 8 1/2 X 11 “, which is what I expected.
Ensure you are calling the script which 'goes to related records' from the correct layout and that the layout is based off the correct table "Invoices". Then ensure the layout you are going to, is also based on the correct table, "Line Items / "Invoice Data"
These are all based off the starter solution (Invoices) so you can see what I am referring to
Note the Table that each layout is based off (circled) and where the script is initiated.
Also note the Go to related records "from Table" and Layout
You will also want to ensure that your relationship between "Invoices" and "Invoice Data" is correct
Thanks, that helped I also did some sizing of the Invoice document layout and that helped make it one page. Thanks again