My company uses Office 365, and I'd like to remove the date grouping (headers) in the list of e-mail messages in Outlook, because they take up a lot of room.
I was able to do that on the web interface (https://outlook.office365.com/mail/) via the option Settings -> View all Outlook settings -> Mail -> Layout -> Don't show date headers in the message list.
However, I want to do that on the app (Outlook, Microsoft 365 Apps for Enterprise, Version 2108 on a Windows 10 machine) and this option is nowhere to be found.