diff --git a/form.php b/form.php
index aa6a258..481b347 100644
--- a/form.php
+++ b/form.php
@@ -160,6 +160,11 @@ public function definition() {
                         continue;
                     }
 
+                    // Only include activity types enabled in settings.
+                    if (!report_editdates_mod_enabled($cm->modname)) {
+                        continue;
+                    }
+
                     // If activity filter is on, then filter module by activity type.
                     if ($activitytype && ($cm->modname != $activitytype && $activitytype != "all")) {
                         continue;
diff --git a/index.php b/index.php
index edef980..5d332aa 100644
--- a/index.php
+++ b/index.php
@@ -70,6 +70,11 @@
             continue;
         }
 
+        // Only include activity types enabled in settings.
+        if (!report_editdates_mod_enabled($cm->modname)) {
+            continue;
+        }
+
         $activitiesdisplayed += 1;
         $activitytypes[$cm->modname] = get_string('modulename', $cm->modname);
     }
diff --git a/lang/en/report_editdates.php b/lang/en/report_editdates.php
index 8970b88..6f56c2b 100644
--- a/lang/en/report_editdates.php
+++ b/lang/en/report_editdates.php
@@ -56,3 +56,5 @@
 $string['editrestrictedaccess'] = 'Edit restricted access (opens a new window)';
 $string['event:reportviewed'] = 'Edit dates report viewed';
 $string['privacy:metadata'] = 'The Dates plugin does not store any personal data.';
+$string['enabledmods'] = 'Enabled activity types';
+$string['enabledmodsdesc'] = 'Press and hold Ctrl key and select or deselect activity types that should be enabled in the report.';
diff --git a/lib.php b/lib.php
index f569753..1620475 100644
--- a/lib.php
+++ b/lib.php
@@ -462,3 +462,12 @@ function report_editdates_cm_has_dates($cm, $course) {
 
     return (bool) report_editdates_mod_date_extractor::make($cm->modname, $course);
 }
+
+/**
+ * Checks if the given activity type is enabled in the plugin's admin settings.
+ * @param string $modname Activity type to check.
+ * @return bool Returns true if activity type is enabled or false otherwise.
+ */
+function report_editdates_mod_enabled(string $modname) {
+    return in_array($modname, explode(',', get_config('report_editdates', 'enabledmods')));
+}
diff --git a/settings.php b/settings.php
index 2a1b517..9588d03 100644
--- a/settings.php
+++ b/settings.php
@@ -39,4 +39,12 @@
             get_string('timelinemaxdesc', 'report_editdates'),
             3,
             $options));
+
+    // Add an admin setting to specify which activity types are enabled in the report.
+    $allmods = get_module_types_names();
+    $settings->add(new admin_setting_configmultiselect('report_editdates/enabledmods',
+        get_string('enabledmods', 'report_editdates'),
+        get_string('enabledmodsdesc', 'report_editdates'),
+        array_keys($allmods), // All activity types are enabled by default.
+        $allmods));
 }