While I do realize this doesn't exactly answer your question, I thought it might be worth posting a link here to a product called Outlook Print (https://www.outlook-print.com). It's a shameless plug by me, but it is free and it is useful for people. It will save paper and toner and other consumables and help the environment.

So, please, if you'd like an add-in added to Microsoft Outlook, then please visit the site and give it a try. At the very least, just watch the two-minute video which will tell you all about it. Again, 100% free, no commitments!