File menu > File Link Manager > Files tab > Turn on Show Reload Options. > Click Reload.
Utilities panel > Utilities rollout > File Link Manager > Files tab > Turn on Show Reload Options. > Click Reload.
The File Link Settings dialog gives you control over the detailed aspects of how geometry is translated from DWG or DXF files and interpreted in Autodesk VIZ. It also allows you to control whether only a portion of the Autodesk VIZ objects will be affected by subsequent reloading. The File Link Settings dialog is displayed when Show Reload Options is turned on in the File Link Manager dialog, or when editing a file link Preset.
The File Link Settings dialog lets you:
The selections you make in the File Link Settings dialog can affect the amount of memory used by Autodesk VIZ to hold the linked data. Use the Select Layers To Include option to reduce the amount of information added to your scene.
In some cases, it might be more efficient to create multiple links to the same file, making different file link settings for each file.
The following file link settings determine what types of VIZBlocks your scene will contain: