About Blanking and Unblanking
In Mold and Cast you can blank or unblank components, parting surfaces, or volumes to remove or add them to the current display of the model. Keep in mind the following points:
• Use the Blank and Unblank dialog box at any time during your work in Mold or Cast mode, even when another dialog box is on the screen.
• Use the filter that is built into the dialog box.
• You can blank or unblank components, parting surfaces, or volumes from the assembly Model Tree.
• You can blank objects by selecting them from the graphics window.
• If an object can be blanked, its status column indicates if it is blanked.
When you select objects for unblanking, the display status of all items of the currently selected item type is reversed. For example, if you select Volume in the selection filter and click the Select button, all the currently blanked volumes are unblanked, and all of the currently unblanked volumes become blanked. You can then select items for unblanking directly from the graphics window.
To access the Blank and Unblank dialog box, click > 
Mold Display or click > Cast Display.
Mold Display or click > Cast Display.In the Model Tree, blanked objects are indicated by distinct icons. For example, a blanked mold volume is indicated by 
and a blanked mold component is indicated by 
in the Model Tree.
and a blanked mold component is indicated by in the Model Tree.