Use the File content menu to select how to import the content of your file into the host application. Select from the following three options: Add and update scene elements, Update scene elements, and Add to scene.
This option adds the content of the FBX file to your scene and updates existing elements.
Use this option to add non-existing elements to the scene, and replace the animation of elements that are already present in the host application. Select this setting to combine the effects of the Add to scene and Update scene elements options.
This is the default setting for the Autodesk Media & Entertainment preset.
This option updates existing elements of your scene.
Use this option to update (exclusive merge) elements that already exist in the host application. Update scene elements does not create new elements in the host application.
This option adds all content of the FBX file to the host application. If elements exist in the host application, they are duplicated.
This is the default setting for the Autodesk Architectural (Revit) preset.