Updating Views
To control the update behavior of the views in an active drawing, specify the Automatic view update mode. If selected, drawing views update as you change the model. You can also set an option to specify whether views are updated when opening drawings. While a drawing view updates, its icon in the FeatureManager design tree changes to: 
.
NOTE: You cannot activate or edit a drawing view that needs to be updated.
To change the update mode in the current drawing:
Right-click the drawing icon at the top of the FeatureManager design tree, and select or clear Automatic view update.
To interrupt an update to a drawing:
Press Esc.
To update drawing views manually:
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Right-click the drawing icon at the top of the FeatureManager design tree and clear Automatic view update if it is checked.
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Click Edit, Update All Views.
- or -
Click Rebuild 
(Standard toolbar) or Edit, Rebuild.
To update automatically when opening drawings:
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Click Tools, Options, System Options, Drawings.
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Select Allow auto-update when opening drawings.
NOTE: The automatic updating of views when opening drawings does not affect Automatic view update for the active drawing document.