The Calendar feature will allow you to share with your users the place and date of your events and the ones you will be present to.
To create a Calendar feature, click on “Calendar” 
:
Click on + to add a calendar. You have 2 options:
ICAL and CUSTOM PAGE
iCal
Click on iCal:
– Then you have to go on Google Calendar:
– Create your event:
– Find the agenda’s URL. To do this, click on “Share this calendar”:
– Click on “Calendar Details”:
– Click on “ICAL” in the Calendar Address:
– Copy this address and paste it in the “Calendar’s URL” field:
Finally, click on OK to validate your event.
Custom
Click on custom:
Enter the name of your Calendar and then click on OK:
To create a new event click on EVENT:
Thus, you have to enter all the required information for your event and an illustration picture.