Hi John
Yes, but with some help from PDF printing:
1. Select the two harness diagrams and select to print "selection" to PDF
2. On the generated PDF there will be one page for each diagram. Select to print and specify "Multiple" in the Printer's page handling options
This way you will end up with a printed output having both diagrams on the same sheet. You can determine the direction and order of the pages in the same dialogue.
Cheers,
Muhammad