In addition to the Availability iView that is shipped as an integral part of the room calendar, you can access the Availability function from other locations, such as the Collaboration Launch Pad.
This allows you to see the availability of any users that you have selected in the Collaboration Launch Pad, whereas you are restricted to the members of the room in question when using the Availability iView in the room calendar.
When you click Availability from the Collaboration Launch Pad, a dialog box appears showing the availability of the people previously selected from the Collaboration Launch Pad.
You can choose users by selecting the checkbox next to their name. If you then choose Create Appointment, the appointment is filled with the members and time selected in the Availability dialog box.
You can also launch the Availability function for an individual user from the context menu for the user in question.