Hi @WilliamDomben, welcome to the forum! 
QGroundControl still only supports viewing one camera at a time, although if you have multiple cameras set up in BlueOS then it will at least allow you to switch between them (with the caveat that switching cameras also ends any active video recording).
This isn’t something Blue Robotics staff are likely to work on, because our control station development efforts have shifted to Cockpit, which already has support for multiple video streams (as long as you have sufficient networking bandwidth to send them to the surface). You’re welcome to try out Cockpit if you want to, although be aware it’s not yet officially released, so support will be limited, and there may be some missing features.
Something like this may also be of interest to consider.