To add an item to a model:

1. Select a blank line where you want to insert the item.
2. Click .
3. From the Item List window, select an item from the list.
4. When you finish adding items to the model, close the Item List window. All selected items appear in the model.
5. (optional) Enter the default value to prefill the item fields during takeoff. Any variables used by formulas attached to the item already appear.
6. In the Detail grid, click to choose a default from a list of available values.
7. In the Variable grid, select the Hide option next to a variable to hide it during takeoff. Variables without defaults automatically appear.
8. If desired, use a question or a question formula to calculate a default value during takeoff.

Entering default values using ad hoc formula

Tips:

• To hide a variable without entering a default, enter 0 in the field and select the Hide check box.
• To adjust the display of a grid, place the cursor on one of its borders and drag in the desired direction.
• The Insert Line - Item Line command is available when you right-click on a line header.
• Once you add a line to a model, you can copy or move it.