Add calendar to call box?

[Jonnyques]

Just moved to a s23 ultra from a Huawei p30.

The one BIG THING I'm missing is the ability to open my calendar from a phone call. On the p30 the box that has your mute, hangup, speaker, etc option's also had a calender shortcut. So I could put a call on speaker, and directly open the calendar, to book a appointment. 

Is there anyway to add this on the ultra? 

Thanks 

[Helenna]

Hi, we request you to please tap on home soft key and then try to open the "Calendar app" during a phone call.