Multiple calendars visible in Microsoft Outlook; is this possible?

[kiddingguy]

Is there a way to display multiple calendars in the Outlook pane (when having the mail app open)?
[MS Outlook as part of M365 family subscription]

I currently have Puresoft Outlook Todo Pane, which works like a charm. But since Microsoft is forcing everyone to the new Outlook-version at the end of the day... is there an alternative/setting to have this displayed? Preferably from the standard Outlook app itself, or else a third party that works with the New Outlook?

Below is a screenshot from the mail-screen/app itself on the right hand side of the Outlook application.

The gold color and blue are two different calendars. Actually derived from iCloud (via Apple's iCloud and integration).