SYMPTOM:
A user that has the option to display the 'page by axis' might find inconsistent the fact that this section will be dynamically hidden if there are no attributes in the report's page by section.
STEPS TO REPRODUCE:




CAUSE:
Although this might be seen as inconsistent behavior comparing the 'page by' section with the other sections, this is not an issue. The behavior is by design. If there are no attributes in the page by section, the section will automatically be hidden to allow for better distribution of the rest of the objects in the menu bars.