The hint for the selector with the checkbox type is not shown

src/ui/components/DashKit/plugins/GroupControl/Control/Control.tsx

@@ -441,6 +441,7 @@ export const Control = ({
             hasValidationError: Boolean(currentValidationError),
             style,
             renderOverlay,
+            hint: controlData.source.showHint ? controlData.source.hint : undefined,
             ...getTypeProps(control, controlData, currentValidationError),
         };
 

src/ui/libs/DatalensChartkit/components/Control/Items/withWrapForControls.js

@@ -58,6 +58,7 @@ function withWrapForControls(WrappedComponent) {
                     </span>
                 )}
                 <WrappedComponent {...props} />
+                {hint && !showLabel && <MarkdownHelpPopover markdown={hint} />}
             </div>
         );
     }

src/ui/units/dash/store/reducers/dash.js

@@ -166,6 +166,8 @@ export function getSelectorGroupDialogFromData(data) {
             placementMode: item.placementMode || CONTROLS_PLACEMENT_MODE.AUTO,
             width: item.width || '',
             namespace: item.namespace,
+            showHint: item.source.showHint,
+            hint: item.source.hint,
         }))
         .sort((a, b) => a.index - b.index);