Description of feature: Opening multiple consoles of GuestOS from virt-manager results in lot of open windows. This could be managed by providing a console mode view for main window of virt-manager that could hold all BaseOS status in a TAB and all open consoles in other TABs, while making it easier to switch within all much simpler. A similar app that does so could be vmware-server-console.
Moving to upstream tracker.
After thinking about it current virt context, I don't think virt-manager will ever grow a mode like this: we want to support people managing servers but we will never invest heavily in people that are managing enough machines to really need a feature like this. Multiple console windows will just have to do. That said if someone implemented something sufficiently compelling I'd consider it at least :)