This toolbar offer a few options that change how ChronoScan behaves while setting up the job.
Zoom Areas
When this function is activated when you click on a field on the Form View or the Modules Panel ChronoScan will focus on the OCR Zone on the Current Page View from which the data is being captured. Very useful while checking the data.
This option overlays all the Text being read from the current page over the original text. Very useful for detecting errors in the reading. Full page OCR must be enabled in order to have all the text from the page displayed.
When enabled this option will make the animations for the Zoom Areas option smooth, taking more processing power. This option only works when Zoom Areas is enabled.