The visibility of marking residual errors is controlled by the “Residuals” check box. See Marking Residual Display and Marking Residual for more detail. You can control the exaggeration factor of the displayed Residual Error by entering an exaggeration amount in the ‘magnify’ text box below the check box.
Note: Residual Errors are not displayed on a photo when that photo is set to ‘Do Not Use in Processing’ or when that photo is not oriented.