Index: applets/systemloadviewer/package/contents/ui/GeneralSettings.qml
===================================================================
--- applets/systemloadviewer/package/contents/ui/GeneralSettings.qml
+++ applets/systemloadviewer/package/contents/ui/GeneralSettings.qml
@@ -48,6 +48,11 @@
 
         text: i18nc("@option:check", "CPU monitor")
         onCheckedChanged: if (!checked) {cpuAllActivatedCheckBox.checked = false;}
+
+        QQC2.ToolTip {
+            visible: parent.hovered
+            text: i18n("Show multiple CPUs separately when using compact bar monitor")
+        }
     }
 
     RowLayout {