With each event created, you can now set the number of participants allowed to attend an event. To create an event with a maximum number of participants:
Go to the Schedule
Click the 'Create Event' button/icon in the upper right
Set your maximum number of participants under Max Players and click Save
NOTE: if the event is already created, click on the event then click 'Edit'. From there, the instructions are the same
From the calendar view, the maximum number of participants for the event will be visible
If a member of your team tries to mark 'Going' on an event at maximum capacity, they will receive a message.