If you select the Enable Document and File Type Combo Boxes option, the File Type and Document Type drop-down lists are enabled in the Import Document dialog box. This option is only enabled when a default Document Type is selected. If this option is not selected, documents are imported using the selected default Document Type. When <None> is selected, the Enable Document and File Type Combo Boxes option is automatically selected.
Note:
If a default Document Type is selected and the Enable Document and File Type Combo Boxes option is not selected, users that do not have rights to the default Document Type can import documents into the Document Type using this action.