Course Menu block
This is a quick start for some documentation for the Course Menu Block plugin.
Get the code and information about the block here: https://moodle.org/plugins/view.php?plugin=block_course_menu
What this block does
At present there is no simple section to section navigation in regular moodle.
The course menu bock takes the title of each section and puts them in a menu block. When combined with a format that shows one section per page, you then have simple section <> section navigation.
These are configurable: