Compositing in 3D Space with Action > About 3D Geometry > Importing 3D Models > About 3D Data in the FBX Format > Working with FBX Scenes Linked to the Original Files >

# FBX Scene Settings

FBX Scale field
  Displays the factor by which to scale the FBX scene. Does not scale the camera if it has already been extracted using the Extract Camera button. Editable.

Extract Camera button
  Click to extract the FBX camera from the FBX scene. It extracts and creates a new FBX camera node, scaled to the current FBX Scale . Once extracted, the camera is no longer linked to the FBX scale: changing the FBX scale does not affect the camera. If you need to edit then rescale the camera after changing the FBX Scale, delete the extracted camera and extract a new one.

Sort button
  Enable so the 3D models contained in the FBX Scene are drawn according to their normals. Consider using this option if the scene contains semi-transparent 3D models to ensure they are correctly drawn.

FBX File Path field
  Displays the path to the FBX file. Click to replace the currently displayed FBX scene with another one.

Refresh button
  Click to update the FBX Scene node with the content of the FBX file. Use this if the FBX file has been updated since its import.