added info about SHIFT select on the charts

diff --git a/web/dashboard.js b/web/dashboard.js
index a3df0b4c55c4c65c60f397c9cf8bccc8573acd58..5731d55e1651ae4afaafe4aa09105bbdef8dccb8 100644 (file)
--- a/web/dashboard.js
+++ b/web/dashboard.js
@@ -2238,7 +2238,7 @@
                                                placement: 'bottom',
                                                delay: 100,
                                                title: 'Chart Zoom In',
-                                               content: 'Zoom in the chart. On Chrome and Opera, you can also press the SHIFT or the ALT keys and then use the mouse wheel to zoom in or out.<br/><small>Help, can be disabled from the settings.</small>'
+                                               content: 'Zoom in the chart. You can also press SHIFT and select an area of the chart to zoom in. On Chrome and Opera, you can press the SHIFT or the ALT keys and then use the mouse wheel to zoom in or out.<br/><small>Help, can be disabled from the settings.</small>'
                                        });
                                        
                                        this.element_legend_childs.toolbox_zoomout.className += ' netdata-legend-toolbox-button';