How to configure the Exchange account (calendar)?

How to configure the Exchange account (calendar)?

When I open the Kustom calendar, I can only see IMAP calendars.

I want to see my Office 365 (Exchange) calendar.

How can I do this?

P.s> my device is Huawei P20 Pro, if it matters

You can try to select your Office calendar in the menu of Klwp(the three lines in the left top of the editor) go to settings, and here you have the option to elect the calendar to show.