Canon MultiPASS C50 Software User's Manual page 42

The process toolbar contains the following buttons:
The Phone button displays if the handset is installed on your C50 and
you set the handset option in the Desktop Manager Setup Options
dialog box. The setting of the handset option is described in Chapter 8,
"C50 Setup and Other Utilities in the Desktop Manager."
You can use an action button by one of the following methods:
Dragging a document to the action button.
For example, you can drag a document from a folder to the Print
button, thereby printing the document.
If a document is dragged to a button that cannot perform the task,
the mouse pointer displays as a no-entry icon (a circle with a
diagonal bar drawn through it).
Clicking a document in a folder and then clicking the button.
This method activates the command for the selected document, as
though the document had been dragged to the button.
Status Bar
The status bar displays information about the selected document or
folder, or a description of the currently selected menu command. The
information is for display only, and cannot be edited.
Chapter 4 Using the Desktop Manager 4-5