What feature in the part navigator indicates if a design group is not active?

In Siemens NX, the Part Navigator visually represents various states of design groups through color-coded spheres. A red sphere specifically indicates that a design group is not active. This visual cue helps users easily identify which portions of their design are currently inactive or not being modified. When a design group is inactive, any changes or operations performed will not affect that particular group until it is activated again. Understanding this visual differentiation aids in effective design management and workflow within the NX environment, allowing engineers and designers to concentrate on the relevant sections of their project.

The other colors signify different states; for instance, blue typically represents an active design group, while white and yellow spheres may indicate different contexts or statuses within the model hierarchy. Recognizing these color codes is essential for efficient navigation and control in complex design projects.