Configuring Camera device to display at full window size by

I have added a Hik Vision Camera, by entering the details into the logitech camera module which all works fine.

Is there a way to make this camera module display full size in the window by default, can you specify an initial HD or SD startup too?

I have also added the camera using the RTSP stream as an open URL, which is also good however would be more useful of the camera could be in a larger window.

Could someone please advise if this is possible.