In 'Render' menu, tab 'Octane Render Settings': when I change the values in 'Kernel Type' changes are reflected in the viewport straight away.
When I update values in 'Camera' and 'Imager', nothing happens in the viewport

How am I supposed to see the effects of what I am doing?
Also a suggestion: it would be useful to see the resolution of the image in the viewport.
Thanks!