You can display and hide reference elements (reference planes, construction curves, coordinate systems and so forth) in the Place Part window only when a part is selected for placement or editing.
| Step 1. | When a part is selected for placement or editing, on the command bar, click the Construction Display button  | 
| Step 2. | Select the Show or Hide option for the reference element you want. | 
Tip:
You can use reference elements to position parts in an assembly. For example, you can use a reference plane to apply a planar align relationship.