In very ‘not-user-friendly’ way.
The charts were drawn on the screen in a way that the bars and indicators were far too small to see them well.
In order to see them better you had to select a time segment (say last few hours) by drawing a rectangle on the chart.
But then you were unable to select a time segment and flip from 15 minutes chart to 5 or 1 minute chart.
You had to go through the same process for every time interval – terrible.
The new version of eSignal has got some additional advanced charting with much improved graphical interface. Still a lot of work to be done – but there are getting there (just like british rail

).