Flexible sections course format for Moodle

In this course format:

• sections can be added inside other sections
• each section (regardless of its nesting level) can be shown either on the same page as parent or on a separate page. Teacher can change it in edit mode.
• If section is displayed on a separate page, it's name is displayed as a link and on this page the link "Back to ... " is displayed
• If teacher hides a section all nested sections and activities become hidden as well.

Please note that if section has both activities and subsections activities are displayed first.

See also https://moodle.org/plugins/format_flexsections