In this section, we will be convering the following lessons:

1. Manipulating Pivot Points:

   • Introduction to the concept of pivot points for 3D elements.
   • Explanation of the pivot point's role in translation and rotation.
   • Demonstrating how to change the pivot point manually using the Object Properties window.

2. Changing Object Names:

   • Explanation of how to change the name of a 3D element using the Object Properties window.
   • Practical demonstration of renaming a cube.

3. Aligning Objects:

   • Introduction to aligning objects, both visually and using the align command.
   • Demonstration of aligning two cubes using the align command.
   • Emphasis on the flexibility of visually aligning objects for augmented reality purposes.

4. Step Hierarchy Interaction:

   • Introduction to the step hierarchy as a representation of all 3D elements.
   • Explanation of the parent-child relationship in the step hierarchy.
   • Practical demonstration of making one cube a child of another and adjusting their positions accordingly.

5. Empty Objects and Hierarchy Organization:

   • Introduction to empty objects as points in space without geometry.
   • Explanation of using empty objects to organize the hierarchy, creating parent-child relationships.
   • Demonstration of creating an empty object as a parent and making cubes its children.

6. Managing Pivot Points with Empty Objects:

   • Explanation of using an empty object as a parent to alter the pivot point for multiple objects simultaneously.
   • Practical demonstration of making cubes rotate around a specific point using an empty parent object.

7. Relative Position in Parent-Child Relationships:

   • Explanation of how position information is given relative to the parent in a parent-child relationship.
   • Demonstrating how moving the parent affects the child's position.
   • Practical example of aligning two cubes using their relative positions to a parent.

8. Parent-Child Relationship Considerations:

   • Importance of understanding and considering the relative positions in a parent-child relationship.
   • Practical examples of how changing the parent's position impacts the child's relative position.

9. Usefulness of Empty Objects:

   • Highlighting the usefulness of empty objects for complex assemblies and organizing subsystems.
   • Encouragement to explore and experiment with parent-child relationships for effective 3D scene organization.