Help needed with Pidog V2 servo calibration

Hi Group, I am new here, I am having trouble calibrating the Pidog V2 servos - my problem is that the right hand box/window is too narrow to see the simple calibration graphic as can be seen in the middle box - can anyone advise how I can expand the right hand box fully to help me calibrate the servos? - Many thanks in advance for any help/guidance.

From the screenshot, it looks like the calibration interface is not scaling properly on your display.

We recommend trying to run the calibration example via SSH instead.

You can find detailed instructions on how to set up SSH (headless access) here:
:link: https://docs.sunfounder.com/projects/pidog/en/latest/\_shared/pi_start/set_up_pi.html#if-you-have-no-screen-headless