When objects that are not displayed are modified (for example, the hidden lines color is changed) a gray rectangle appears around the modified object, meaning that an update is needed. This tool forces an immediate update of a modified detail.
To access the command
Ribbon: Labels & Dimensions > Management: 
Command line: _AstM4CommDetUpdateDetail
To update a modified detail
- Select the gray rectangle. On the
Labels & Dimensions
tab,
Management
panel: Click .
- The detail is updated.
Note:
This update can be done after several modifications of the object.
Any revision clouds in the detail will be lost.