Adding Mass Properties To add mass properties: In a file, click File > Properties. In the dialog box, click the Custom tab for properties that apply to the entire document, or the Configuration Specific tab for properties that vary from one configuration to another. Enter a Property Name for the mass property. Select Text from the Type list. Under Value / Text Expression, select the appropriate mass property from the list. Mass properties use the following, system-generated format: SW-mass_property@ @ configuration@model_name Example: SW-Density@@large@Block.SLDPRT Press Tab or Enter. The value of the property appears under Evaluated Value. Mass properties for non-active configurations do not update until you make the configuration active. If you specify a non-active configuration in Applies to, an asterisk (*) appears under Evaluated Value, and a footnote states Calculated the next time the configuration is active. Units of measure for mass properties are specified in document properties. To access document properties, click Tools > Options, then on the Document Properties tab, click Units. Units of measure for mass properties are specified under Mass property units. Parent topicProperties - Custom and Configuration Properties Accessing Custom and Configuration Properties Adding Properties Linking a Property Value for a Part to the BOM Quantity Adding Associative Dimensions Into Properties Editing Properties Editing the List of Custom Properties Deleting Properties