That’s more or less what we have been doing, using two browsers
However the images don’t fill the screen and are no better than the video viewer software
there must be some way to access individual cameras as most of the time the video viewer software only shows you what the DVR is playing if you go to edit an area with the viewer you can bring up individual cameras without effecting what is displayed on the DVR unit
So you would presume it has the capability to stream individual cameras rather than just what is being displayed on the DVR