Usability issues - CTRL enter
From MoodleDocs
This is the list of pages where there is only a submit button (classified by submit, update, send in ratings or whatever):
Note: when there is the simbol (*) at the end of the page is that there is also the turn editing on button in this page.
=Turn editing on= :
=Save changes= :
This is the list of pages where there is more than a submit button: