You can select a group of member to send your notifications to when there is any update on stories, tasks or bugs. You have to configure notification email before that can be sent to members. Please refer to 8.2.2 How to Configure your Email.

1. Go to Dashboard->Contact and click Create a List. Enter the list name and choose members for this list.

Note: Members can be added at Company->User.

2. Manage an existing list.

Click the list you want to manage and you can add/delete members.

3. Once lists have been created, you can choose the list at Contact when creating tasks.