I am making a dynamic dashboard. It shows real time and historical data.

Here is the screenshot of it : http://imgur.com/a/Mk1EH

All red arrows in the ss are symbolizes relative grids and charts. They all are connect to each other.

However, I am not comfortable with the 'Real Time' and 'Historical Time' design.

End users can't understand if the dashboard is setted to 'Real Time' or 'Historical Time'

If the dashboard is set to 'Real Time' option all datagrids and datachart should be feel like 'they are in real time mode'

Need your helps and thoughts.