These preferences apply to the Generated Code Structure and Design views.
The option Hide nodes owning the property "hidden" is selected by default. These nodes are created when the micropatterns that retrieve the parameterized operators in Macros are expanded. These nodes are then hidden by default in order not to clutter the nodes tree. However you can display them to detect problems, if any.
The option Display the long labels of the nodes is selected by default. The nodes view then systematically displays the titles of the generated and specific functions and subfunctions. These titles are extracted from the comment that precedes the function or subfunction, without any irrelevant characters.