How to show vertical pane in Outlook add-ins in Outlook Web App (OWA), Outlook 2016 Mac & Windows

Question

I am developing an outlook add-in targeting OWA, Outlook 2016 for Mac & Windows. My requirement is to show the add-in vertically on right side while re

Answer 1

Add-in commands will be rolling out soon to all users and all add-ins for Outlook Web and we expect it to be at a 100% in the month of Dec. Once its rolled out you'll be able to have buttons in OWA that launch task pane, as you see in the screenshot. For Outlook desktop for Windows, this feature is already available however for Outlook for MAC too we expect this to be out in December!