On the Admin drop-down menu, click the Departments option. [1]
Click to edit the Department. [2]
Name the new group and Click ‘Save’. [4]
Click the name of the Subgroup on the department list. [5]
Select the department to see the list of current members. [7]
Drag and drop individual names or… [8]
…click ‘Add All’ to add all visible names to the list. [9]
Creating Department Subgroups - Standard Method (Word 2007)