Hi Robbyn, 

Just reviewing the forums for posts with no replies - is this still an issue?

When creating To Do items in CM, you are able to set an Assignee - in your case you would want to make this the group. 

The user search settings could then be adjusted to include the persons position, and location associations and set as default. 

This means that whenever a user selects To Do Tray in CM, they will be able to see the items assigned a Organization, Group or Position they are allocated too in CM. 

In my example, as TRIMSERVICES is a member of the Director Group, i can see the To Do item. 

In regards to email notifications;

If the Group has a email listed against it, this will be used. 

If the Group does not have a email, then it will use the emails of the members within the group. This might need to be tested against your version to confirm but. 

Thanks, 

Benny