Import 3D-Models from Library
To import a 3D-Model from the Library window navigate to the Models path in the left side of the Library window. Select the a Model and Drag it onto the 3D Area.
If you want to add more than one object you can also use the "Add to Scene" button and adjust the Quantity with the Editbox "Qty". All models will be placed onto position 0,0,0 and will be arranged on line to X+.
If you hold the CTRL-Key and drag the new 3D-Model over an another 3D Model in the 3D-Scene the new Object will be placed as a child object.