Moodle 3.3.1 with Grid format 18.104.22.168 wasn't opening a section in a window. Realising the Grid format was probably the wrong version I then installed Grid format 22.214.171.124. This didn't fix the problem of sections not opening in a window, but created the problem that when I changed the course format on an existing course to Topics format the Number of Sections drop down box was missing . I then decided to uninstall Grid format to see if this brought the Number of Sections drop down box back. It didn't!
Creating a new course with Topics format has the Number of Sections drop down box visible and usable. How can I get the Number of Sections drop down box visible for existing courses in Topics format? I don't want to have to recreate all the courses.
Any help to a Moodle newbie admin would be appreciated.