You can work in perspective faster by turning your libraries into linear frames with the Draw as Bounding Box in 3D .
Location of Draw as Bounding Box in 3D Feature
Select the object you want to show as a bounding in the 3D model and click on the Properties line from the pop-up menu by clicking the right mouse button.
Select the library object and click the right mouse button.
Click the properties line from the drop-down menu.
Check the draw as bounding box in 3D option.
Close the dialog by saying OK.
The library will only be displayed as a contour in the 3D model.
With draw as bounding box in 3D unchecked
With draw as bounding box in 3D checked