Parent Objects

VX utilizes an object-oriented structure with parent/child relationships. Beginning with the active session, objects within files are activated for editing.  Each activated object is a child of its parent (i.e., the object that activated it).  For example, when you open a file and then activate a part in the file for editing, the part is the child (i.e., the active object) and the file is its parent.

The relationship progresses further.  When you create a sketch in the part and work on it, the sketch becomes the child (i.e., the active object) and the part is its parent.
 

The relationship continues with assemblies and drawing packets.  A component in an assembly is the child of the part that was active when the component was inserted.  Once inserted, the component becomes the new active object. Drawing packets are root objects like parts.  They are children of the active file when created.

Drawing sheets when created are children of the active drawing packet. A drawing packet can have many drawing sheets.  A drawing sheet can be the child of one or more drawing packets.  It is important to note that sketches and drawing sheets can also be root objects like parts (i.e., children of one or more files).

Pick the Go up to Parent Object icon from the Tool Bar to exit the active object and activate its parent.  Picking the icon repeatedly will return you all the way up to the object level.