CADWorx Plant I tab: Setup Size/Spec > Optional Items 
Setting toolbar: Specification Option Toggle
Plant menu: Accessory > Specifications > Optional Items
Command line: SPECOPTION
Places a component on the drawing when the component type in the specification has an optional component (such as when a 300 lb. orifice flange is in the 150 lb. specification).
Click the command to toggle between two methods:
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The command line message is:
All components will be dialoged...
When a component type is selected, all components of that component type appear in the Optional component dialog box. For more information, see Optional Component Dialog Box.
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The command line message is:
Specification dialog turned off...
When a component type is selected, the default component is selected for placement on the drawing. The Optional component dialog box does not appear unless the component size is out of the specification range or the component is not allowed by the specification. You can then select a component in the range. For more information, see Optional Component Dialog Box.