You can open A.60.63 Valid Settings using the icon on each screen in Smart Materials and Smart Reference Data. The first tab on A.60.63 shows the project defaults that are relevant for the screen from which it was called. If you have the permission to enter or change project defaults on A.20.12/.13, you can update these values here on A.60.63 as well.
When this screen is called, it shows the current settings of the project defaults. Double-clicking the value or using the LOV icon or F9 opens the List of Values, wherever available. When a value is changed and the A.60.63 screen is closed, you are prompted to specify if changes should be made for the project or discipline. To be sure that the changes are in effect, the screen from which A.60.63 was called must be closed and re-opened.