The Calculation module window opens when you select 
on the toolbar or select Modules > Calculation. Note that you can have multiple open modules. The number of open modules depends
on your computer resources.
The window consists of the following sections:
Menu bar
Provides access to all the Calculation Module Commands.
Application work area
The area where other Calculation module windows and dialog boxes open.
Toolba
Provides access to the most common Calculation module commands.
Status ba
Shows the current status or the pertinent Microhelp message, plant hierarchy items, and the current date and time.