Hello, 

 Take proxy on result from GetScreenshot method and call save method on imageProxy.

Regards,

Refer below links.

https://collaborate.pega.com/discussion/pega-robotics-capturing-screen-pega-robotic-automation

https://collaborate.pega.com/question/how-use-get-screen-shot-method-pega-robotic-studio

Note: To generate the proxy, right click on data flow(blue dot) and will see option Extract Proxy.

Hi,
Hope this automation helps you.
Used Scrollintoview method which is used when the control is present somewhere in very lengthy pages.