On the left marge of the portal, and also in the header of the forum, you are now able to find a calendar.
Please feel free to include any events you find suitable.
To do so:
Post a topic in the forum concerning the event you want to share. Under the "Send" bouton you continue to scroll down and you will see the features of the calendar (day, month, year, hour...). Complete and send your post.
If any question use this topic.