Setup: Create a course in "topics" format with at least three sections, each section should have activities and summary, add images in each summary Hide one section and restrict access to another section (for example, by date) Test As teacher: set "Hidden sections are shown in collapsed form" option in "Course format" on course edit page. Make sure the hidden section is displayed to the teacher with the availability pill "Hidden from students" View course as a student, the hidden section should be displayed very similar way to as the section with access restriction is displayed - there should be a heading with section name and the pill with availability restriction. Section summary should not be displayed to students in the hidden section but should be displayed in the section with access restriction. As teacher: set "Hidden sections are completely hidden" option in "Course format" on course edit page. Make sure the hidden section is displayed to the teacher with the availability pill "Hidden from students" View course as a student, the hidden section should not be displayed As teacher set "Show one section per page" option in "Course format" on course edit page. Make sure teacher can see and access hidden section (try with editing mode on and off) View course as a student, the hidden section should not be displayed As teacher: set "Hidden sections are shown in collapsed form" option in "Course format" on course edit page. Make sure teacher can see and access hidden section (try with editing mode on and off) View course as a student, the hidden section should be displayed very similar way to as the section with access restriction is displayed - there should be a heading with section name (not clickable) and the pill with availability restriction. Section summary should not be displayed to students in the hidden section but should be displayed in the section with access restriction. On each step make sure that: Student can not see the summary of the hidden section regardless of course settings (to maintain the previous behavior) When access to the section is restricted student CAN see the section summary (again, to maintain the previous behavior) Student can not see and access activities inside sections that are hidden or have access restriction When course setting is ""Hidden sections are completely hidden" student can not see the section heading All sections that are displayed have headers with the section name