Update documentation for charts in user manual (#1916)

* Add documentation that describes basic chart features new with Plotly JS. 
* Add documentation about Metric Explorer chart features (context menus for different chart elements)

user_manual_builder/Common_User_Interface_Elements.rst

@@ -352,6 +352,27 @@ the chart. The chart shown in :numref:`chart_viewer` is from the
 Resource* category is expanded, followed by selection of the *XD SUs
 Charged: Per Job* metric.
 
+Every chart in XDMoD can zoom along a specific axis by clicking and dragging
+the cursor in a straight line vertically or horizontally to zoom along the
+y-axis or x-axis, respectively. When adjusting the zoom along a specific axis
+you will be able to adjust the range of the data based on how far you drag
+your cursor. Every chart in XDMoD can also zoom along both the x- and y-axes
+adjusting the range for both. For most charts in XDMoD, the zoom level can
+be reset by double clicking on an empty area of the plot. The only exception
+is for charts in the :ref:`Metric Explorer <metric_explorer>` tab, where you
+can reset the zoom by clicking on the chart and choosing the "Reset Zoom"
+option from the context menu.
+
+.. figure:: media/plot_vertical_zoom.png
+   :name: plot_vertical_zoom
+
+   Example of adjusting the zoom along the y-axis (vertically).
+
+.. figure:: media/plot_horizontal_zoom.png
+   :name: plot_horizontal_zoom
+
+   Example of adjusting the zoom along the x-axis (horizontally).
+
 Drilldowns: Most of the charts displayed in XDMoD have a drill-down
 capability, which will allow users to click on a data series (bar, line,
 pie slice, etc.) and acquire more detailed information about the

user_manual_builder/Metric_Explorer.rst

@@ -211,6 +211,49 @@ display format.
 
    In the Metric Explorer Plots can easily be changed directly by clicking on them.
 
+Additional Chart Features
+-------------------------
+Clicking on a y-axis label will open a dialog box next to the clicked label.
+Through this dialog box you can adjust the minimum and maximum values of the
+range for any of the y-axes on the plot. You can reset these values by
+clicking on the "Reset Range" button or by erasing the values. Additionally,
+you can enable a logarithmic scale for that y-axis.
+
+.. figure:: media/metric_explorer_yaxis_context_menu.png
+   :name: metric_explorer_yaxis_context_menu
+
+   You can adjust the range and enable a log scale by clicking on a
+   y-axis label.
+
+Clicking on an x-axis label will open a dialog box next to the clicked label.
+Through this dialog box you can adjust the time duration for the chart.
+The options available replicate the duration toolbar.
+
+.. figure:: media/metric_explorer_xaxis_context_menu.png
+   :name: metric_explorer_xaxis_context_menu
+
+   You can adjust the time duration by clicking on an x-axis label.
+
+Clicking on a legend entry will open a dialog box next to the clicked entry.
+The context menu provided through the legend entry is the same as clicking on
+a point in the plot. The only option that is excluded is the "Show Raw Data" option.
+
+.. figure:: media/metric_explorer_legend_context_menu.png
+   :name: metric_explorer_legend_context_menu
+
+   You can interact with a data series context menu by clicking on its
+   respective legend entry.
+
+For Metric Explorer charts, the zoom level of the plot is reset differently
+than the other tabs. The zoom level can be reset by clicking on the chart
+and choosing the "Reset Zoom" option from the context menu.
+
+.. figure:: media/metric_explorer_reset_zoom.png
+   :name: metric_explorer_reset_zoom
+
+   You can reset the zoom level of a chart by clicking on it and
+   choosing "Reset Zoom."
+
 Managing Data Series
 -------------------------