Hi Good morning,
I have been a Xerox Tech for over 30 years, unfortunately that software will ONLY print the oversize paper if its in Tray 3.
They never made an option to be able to switch that unfortunately;-(
So, you will need to use that tray for any oversize printing.
I wish I had better news for you on this, I really do.
Please let me knwo if I can help with anything else, also dont forget to leave a positive rating so I can close this for us, there is no additional cost to rate kindly;-)
Thank you and have a great day.