Go to IGEL Setup > User Interface > Input > Touchscreen.
Set Touchscreen already calibrated to 'false'.
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IGEL Setup > User Interface > Touchscreen
> Touchscreen already calibrated
userinterface.touchscreen.calibrated
enabled / disabled
Set Touchscreen type to Elo Singletouch (USB).
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IGEL Setup > User Interface > Input > Touchscreen
> Touchscreen type
userinterface.touchscreen.driver
Reboot the device or click in IGEL Setup Accessories > Touchscreen Calibration to use the IGEL touchscreen calibration tool. This will call the proprietary ELO Singletouch calibration tool which is located at /etc/opt/elo-usb/elova. The calibration parameter will be saved in /wfs/elo-usb.d/USBConfigData.
Hold-to-Right-Click Feature
The feature is not supported.
Multimonitor
Multiple ELO Singletouch USB touchscreens on a single IGEL device are supported. Calibration of the second ELO Singletouch USB touchscreen can be done via command line by using: /etc/opt/elo-usb/elova --videoscreen=2 where 2 is the second ELO Singletouch USB touchscreen connected to the IGEL device.
To view a list of video and USB touchscreen devices available for calibration, use the command: /etc/opt/elo-usb/elova --viewdevices.