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.
Access the command
In Labels & Dimensions tab 
Management panel, click
(Update detail).
Command line: _AstM4CommDetUpdateDetail
Update a modified detail
- Select the gray rectangle.
- In Labels & Dimensions tab Management panel, click
(Update detail).
- 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.