To simplify and speed up the classification work, classes and features can be assigned to projects in advance using mapping. See Section 5.12.14, “ Automatic Class Mapping: Edit... ” in eCATALOG 3Dfindit or Section 5.12.13, “ Map class systems... ” in eCATALOG 3Dfindit In such a case, classes and features are marked with background colors:
(background color): The class can be set on the
Catalog root item or subcatalog root item.
Table values or conditions are not allowed.
The behavior is analogous to the other class2class mappings.
See also Section 5.12.3, “Classifications ” in eCATALOG 3Dfindit.

![Example with "Suggested elements [Suggested items]"](https://webapi.partcommunity.com/service/help/latest/pages/en/3dfindit/doc/resources/img/img_aabeff35c1a5415996ae93d57553f997.png)