> From what I've seen there is usually gentle resistance to adding extra ones
I don't want to add a new capability. I'm going to reflect that in the tracker.
If editing the section headings has to be bundled with another capability, then the two most appropriate ones would be:
Move sections (moodle/course:movesections) OR 'control section visibility' (moodle/course:sectionvisibility)
If you trust your teachers to move sections around or control their visibility, then you probably trust them to edit the headings too. Whereas accessing the course settings is another beast entirely!
Thanks for your feedback.