Each template and activity can have a list of to do items which can be assigned to people.
To do items are lightweight reminder items that can be controlled via the web page, over chat, or via a script.
Display the Activities. In your service group, select Activities and click the activity that you'd like to explore and edit.
Display an Activity's To Dos. Each activity can have one or more to do items available in the To dos tab, as shown below.