This feature provides an option to choose whether or not to import MaterialGroup nodes for part files, assemblies, or instances.
We added the Import Group Materials option to the File Specific Options of the Import File(s) dialog.
When disabled, Import Group Matrials doesn't create additional MaterialGroup nodes for part files, assemblies, or instances, and simple discards the materials. For some Inventor workflows, you may want this option enabled to create these MaterialGroup nodes.
We also added Import Group Materials to Edit > Preferences > Import/Export > File Type > Catia V5, under the File Specific section. Set whether this option's default behavior is for it to be enabled or disabled.