You may want to add community events from time to time and have it visible on your tenant portal. Please see steps below to see how you can set the events.
Step 1: Click on Building in question
Go to Properties -> Buildings -> Select a building
Step 2: Click on Views and then Community events
Step 3: Click on "+Add"
Step 4: You put in all the information and the click save
Step 5: Tenant can then view it from their portal