Planning calendar, Text and Buttons in each Calendar cell SAPUI5?

In the existing planning calendar sapui5, Appointments are displayed in the calendar as per the timeline with color-coding.

But My requirement is to display Text and Buttons inside each calendar cell, How this can be achieved using sapui5 controller sap.m.PlanningCalendar?

https://sapui5.hana.ondemand.com/test-resources/sap/m/demokit/teamCalendar/webapp/index.html?sap-ui-theme=sap_fiori_3

Thanks in Advance