diff --git a/course/format/classes/base.php b/course/format/classes/base.php
index 9330bc3ad7d..cd273397758 100644
--- a/course/format/classes/base.php
+++ b/course/format/classes/base.php
@@ -1735,4 +1735,36 @@ abstract class base {
         // By default, formats store some most display specifics in a user preference.
         $DB->delete_records('user_preferences', ['name' => 'coursesectionspreferences_' . $course->id]);
     }
+
+    /**
+     * Duplicate a section
+     *
+     * @param section_info $originalsection The section to be duplicated
+     * @return section_info The new duplicated section
+     * @since Moodle 4.2
+     */
+    public function duplicate_section(section_info $originalsection): section_info {
+        if (!$this->uses_sections()) {
+            throw new moodle_exception('sectionsnotsupported', 'core_courseformat');
+        }
+
+        $course = $this->get_course();
+        $oldsectioninfo = get_fast_modinfo($course)->get_section_info($originalsection->section);
+        $newsection = course_create_section($course, $oldsectioninfo->section + 1); // Place new section after existing one.
+
+        $newsection->name = $originalsection->name;
+        $newsection->summary = $originalsection->summary;
+        $newsection->summaryformat = $originalsection->summaryformat;
+        $newsection->visible = $originalsection->visible;
+        $newsection->availability = $originalsection->availability;
+        course_update_section($course, $newsection, $newsection);
+
+        $modinfo = $this->get_modinfo();
+        foreach ($modinfo->sections[$originalsection->section] as $modnumber) {
+            $originalcm = $modinfo->cms[$modnumber];
+            duplicate_module($course, $originalcm, $newsection->id, false);
+        }
+
+        return get_fast_modinfo($course)->get_section_info_by_id($newsection->id);
+    }
 }
diff --git a/course/format/classes/output/local/content/section/controlmenu.php b/course/format/classes/output/local/content/section/controlmenu.php
index 4bba866902d..a9bab4f813c 100644
--- a/course/format/classes/output/local/content/section/controlmenu.php
+++ b/course/format/classes/output/local/content/section/controlmenu.php
@@ -152,6 +152,17 @@ class controlmenu implements named_templatable, renderable {
                 'pixattr' => ['class' => ''],
                 'attr' => ['class' => 'icon edit'],
             ];
+
+            $duplicatesectionurl = clone($baseurl);
+            $duplicatesectionurl->param('section', $section->section);
+            $duplicatesectionurl->param('duplicatesection', $section->section);
+            $controls['duplicate'] = [
+                'url' => $duplicatesectionurl,
+                'icon' => 't/copy',
+                'name' => get_string('duplicate'),
+                'pixattr' => ['class' => ''],
+                'attr' => ['class' => 'icon duplicate'],
+            ];
         }
 
         if ($section->section) {
diff --git a/course/format/tests/base_test.php b/course/format/tests/base_test.php
index 55ca4d7c602..d22422895c2 100644
--- a/course/format/tests/base_test.php
+++ b/course/format/tests/base_test.php
@@ -416,6 +416,45 @@ class base_test extends advanced_testcase {
             ]
         ];
     }
+
+    /**
+     * Test duplicate_section()
+     * @covers ::duplicate_section
+     */
+    public function test_duplicate_section() {
+        global $DB;
+
+        $this->setAdminUser();
+        $this->resetAfterTest();
+
+        $generator = $this->getDataGenerator();
+        $course = $generator->create_course();
+        $format = course_get_format($course);
+
+        $originalsection = $DB->get_record('course_sections', ['course' => $course->id, 'section' => 1], '*', MUST_EXIST);
+        $generator->create_module('page', ['course' => $course, 'section' => $originalsection->section]);
+        $generator->create_module('page', ['course' => $course, 'section' => $originalsection->section]);
+        $generator->create_module('page', ['course' => $course, 'section' => $originalsection->section]);
+
+        $originalmodcount = $DB->count_records('course_modules', ['course' => $course->id, 'section' => $originalsection->id]);
+        $this->assertEquals(3, $originalmodcount);
+
+        $modinfo = get_fast_modinfo($course);
+        $sectioninfo = $modinfo->get_section_info($originalsection->section, MUST_EXIST);
+
+        $newsection = $format->duplicate_section($sectioninfo);
+
+        // Verify properties are the same.
+        foreach ($originalsection as $prop => $value) {
+            if ($prop == 'id' || $prop == 'sequence' || $prop == 'section' || $prop == 'timemodified') {
+                continue;
+            }
+            $this->assertEquals($value, $newsection->$prop);
+        }
+
+        $newmodcount = $DB->count_records('course_modules', ['course' => $course->id, 'section' => $newsection->id]);
+        $this->assertEquals($originalmodcount, $newmodcount);
+    }
 }
 
 /**
diff --git a/course/format/tests/behat/duplicate_section.feature b/course/format/tests/behat/duplicate_section.feature
new file mode 100644
index 00000000000..65babf2e544
--- /dev/null
+++ b/course/format/tests/behat/duplicate_section.feature
@@ -0,0 +1,26 @@
+@core @core_course @core_courseformat
+Feature: Duplicate a section
+  In order to set up my course contents quickly
+  As a teacher
+  I need to duplicate sections inside the same course
+
+  Background:
+    Given the following "course" exists:
+      | fullname         | Course 1 |
+      | shortname        | C1       |
+      | category         | 0        |
+      | enablecompletion | 1        |
+      | numsections      | 4        |
+    And the following "activities" exist:
+      | activity | name              | intro                       | course | idnumber | section |
+      | assign   | Activity sample 1 | Test assignment description | C1     | sample1  | 1       |
+      | book     | Activity sample 2 | Test book description       | C1     | sample2  | 1       |
+      | choice   | Activity sample 3 | Test choice description     | C1     | sample3  | 2       |
+    And I log in as "admin"
+    And I am on "Course 1" course homepage with editing mode on
+
+  @javascript
+  Scenario: Duplicate section
+    Given I open section "1" edit menu
+    And I click on "Duplicate" "link" in the "Topic 1" "section"
+    Then I should see "Activity sample 2" in the "Topic 2" "section"
diff --git a/course/format/upgrade.txt b/course/format/upgrade.txt
index d3b30556675..77d4ef7dd8a 100644
--- a/course/format/upgrade.txt
+++ b/course/format/upgrade.txt
@@ -16,6 +16,7 @@ Overview of this plugin type at http://docs.moodle.org/dev/Course_formats
     - Renderer method: core_courseformat\output\section_renderer::bulk_editing_button
     - New overridable checkboxes: content/cm/bulkselect.mustache and content/section/bulkselect.mustache
 * Plugins can use the CSS class "bulk-hidden" to hide elements when the bulk editing is enabled.
+* New core_courseformat\base::duplicate_section method to duplicate course sections and their modules within a course.
 
 === 4.1 ===
 * New \core_courseformat\stateupdates methods add_section_remove() and add_cm_remove() have been added to replace
diff --git a/course/lib.php b/course/lib.php
index 0a57d990575..639409a13d9 100644
--- a/course/lib.php
+++ b/course/lib.php
@@ -3357,6 +3357,8 @@ function mod_duplicate_activity($course, $cm, $sr = null) {
  *
  * @param object $course course object.
  * @param object $cm course module object to be duplicated.
+ * @param int $sectionid section ID new course module will be placed in.
+ * @param bool $changename updates module name with text from duplicatedmodule lang string.
  * @since Moodle 2.8
  *
  * @throws Exception
@@ -3366,7 +3368,7 @@ function mod_duplicate_activity($course, $cm, $sr = null) {
  *
  * @return cm_info|null cminfo object if we sucessfully duplicated the mod and found the new cm.
  */
-function duplicate_module($course, $cm) {
+function duplicate_module($course, $cm, int $sectionid = null, bool $changename = true): ?cm_info {
     global $CFG, $DB, $USER;
     require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
     require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');
@@ -3442,16 +3444,22 @@ function duplicate_module($course, $cm) {
         // Proceed with activity renaming before everything else. We don't use APIs here to avoid
         // triggering a lot of create/update duplicated events.
         $newcm = get_coursemodule_from_id($cm->modname, $newcmid, $cm->course);
-        // Add ' (copy)' to duplicates. Note we don't cleanup or validate lengths here. It comes
-        // from original name that was valid, so the copy should be too.
-        $newname = get_string('duplicatedmodule', 'moodle', $newcm->name);
-        $DB->set_field($cm->modname, 'name', $newname, ['id' => $newcm->instance]);
+        if ($changename) {
+            // Add ' (copy)' to duplicates. Note we don't cleanup or validate lengths here. It comes
+            // from original name that was valid, so the copy should be too.
+            $newname = get_string('duplicatedmodule', 'moodle', $newcm->name);
+            $DB->set_field($cm->modname, 'name', $newname, ['id' => $newcm->instance]);
+        }
 
-        $section = $DB->get_record('course_sections', array('id' => $cm->section, 'course' => $cm->course));
-        $modarray = explode(",", trim($section->sequence));
-        $cmindex = array_search($cm->id, $modarray);
-        if ($cmindex !== false && $cmindex < count($modarray) - 1) {
-            moveto_module($newcm, $section, $modarray[$cmindex + 1]);
+        $section = $DB->get_record('course_sections', ['id' => $sectionid ?? $cm->section, 'course' => $cm->course]);
+        if (isset($sectionid)) {
+            moveto_module($newcm, $section);
+        } else {
+            $modarray = explode(",", trim($section->sequence));
+            $cmindex = array_search($cm->id, $modarray);
+            if ($cmindex !== false && $cmindex < count($modarray) - 1) {
+                moveto_module($newcm, $section, $modarray[$cmindex + 1]);
+            }
         }
 
         // Update calendar events with the duplicated module.
diff --git a/course/view.php b/course/view.php
index 594e5ffd489..49890b39a88 100644
--- a/course/view.php
+++ b/course/view.php
@@ -13,6 +13,7 @@
     $edit        = optional_param('edit', -1, PARAM_BOOL);
     $hide        = optional_param('hide', 0, PARAM_INT);
     $show        = optional_param('show', 0, PARAM_INT);
+    $duplicatesection = optional_param('duplicatesection', 0, PARAM_INT);
     $idnumber    = optional_param('idnumber', '', PARAM_RAW);
     $sectionid   = optional_param('sectionid', 0, PARAM_INT);
     $section     = optional_param('section', 0, PARAM_INT);
@@ -187,6 +188,12 @@
             }
         }
 
+        if (!empty($section) && !empty($coursesections) && !empty($duplicatesection)
+            && has_capability('moodle/course:update', $context) && confirm_sesskey()) {
+            $newsection = $format->duplicate_section($coursesections);
+            redirect(course_get_url($course, $newsection->section));
+        }
+
         if (!empty($section) && !empty($move) &&
                 has_capability('moodle/course:movesections', $context) && confirm_sesskey()) {
             $destsection = $section + $move;