multiple calendar's is outlook taskbar

I'm using Outlook 365 desktop app on my business laptop. In my calendar-view I've 4 calendars:

1. calendar from my business Exchange account

2. calendar from my business Exchange accounr from the client I'm working at

3. my own private GMail calendar

4. another privatie GMail calendar (from my wife and myself)

This way I've a combined view on all my agenda's in de calendar-view.

In the mailview from Outlook  I've configured the taskbar for showing my calendar. But only the main calendar is shown. is there a possibility to view all 4 calendar's?