Address Book
[For Exchange Users only]
You can select each resource and click the Add To Group
button or simply double-click on each resource you want to add to the list.
To select a series of adjacent resource names, select a resource at the start of
the list, hold the Shift key and then select the resource at the end of the list.
To select a series of non-adjacent resources names, hold the Ctrl key and select
each resource in turn. Then click the Add To Group
button.