I use full-screen virtual consoles (those you can switch to with Ctrl+Alt+Fx) actively but some times I would like to view/interact with them via an X terminal window without actually switching to them. Is it possible to connect a GUI terminal emulator like Konsole or other to some of them, see/do something and disconnect while leaving the shell instance running there active and connect again some time after perhaps?
you can then use tmux or screen on vTTYs (those you can switch to with Ctrl+Alt+Fx)
& then attach sessions into a Xterm or any other Graphical Terminal you want to use; of course you can also detach them after that etc...
If you really want to keep thoses sessions on vTTYs