Question:
I can no longer find a cross-section from an older version. Has this been removed?
Answer:
In all probability, the desired cross-section is a cross-section of an old standard. The default settings only display the cross-sections of valid standards.
If the cross-sections of old standards are required, they can be displayed by using the Include invalid ... check box in the Filter section. The cross-sections of invalid standards are marked in red.