So I have a word document that has 4 pages. The first 3 are letter sized and the last page is an envelope. The user is trying to stick an envelope in the manual tray of an HP printer. The hope is that when the document prints, it prints out the letter sized paper from the main tray and then automatically print to envelope for the last page using the manual tray. I have not been able to get this to work. It always prints from the manual tray first. Tried setting the section for the envelope to manual feed tray in the page setup settings but did not work.

Does anyone one if this is even possible?