The Unit Demand Collection dialog box allows you to assign single or composite unit demands to the elements in the model.

To assign one or more unit demands:

1. Specify the Unit Demand count.
2. Select a previously created Unit Demand from the list or click the ellipsis button to open the Unit Demands Dialog Box, allowing you to create a new one.
3. Select a previously created Demand Pattern from the list or click the ellipsis button to open the Pattern Manager, allowing you to create a new one.