Using Levels

The Used for drop down is used to select pre-defined level settings i.e for reserved space The Levels defines the range of detailing levels at which the primitive is visible. For example, if you build a Volume, you can display the primitives in layers 1 - 3, the base in layers 5 - 7 and the nozzles in layer 8 - 10. The levels visible in design determine the picture you see. The current visible, levels are given by the Settings > Graphics > Representation menu.