A group is a set of local users and resources. The purpose of a group is to provide an easy way to perform certain actions with the same grouping of users and resources. For example, you may wish to e-mail every member of your sales team with their monthly sales results. Rather than selecting each user individually, you can simply e-mail the 'Sales Team' group instead. Also, once you have defined a group, you may view the diaries of each member of the group, side by side, from Group mode.