Do not approach basic model organization in terms of Layers.
Organize the model by building one logical portion of the structure at a time.
Make the first portion a Component before you proceed to model the next logical portion of the model.
Make that portion a Component before beginning to model the next logical portion of the model.
And so on … until the completed model is an assembly of Components with no raw geometry left behind.
Assigning the Components to various Layers enables you to control their visibility.
The use of Scenes enables you to save, organize and present various views of the model.
Scenes can control:
• Camera Location
• Hidden Geometry
• Visible Layers
• Active Section Planes
• Style and Fog
• Shadow Settings
• Axes Location
Which of these properties any one Scene retains is up to you via the Scene Manager.