Stupid GNOME command line tricks
(There may be other ways of doing this, but FWIW…) If you’ve ever wanted to reduce workspace clutter by merging two terminal instances, you can do this easily by creating a tabbed view within one of the instances (SHIFT+CTRL+T) and dragging the tab (or tabs) you wish to merge to the other instance. Simple eh?
Can’t confirm if this works in KDE, but I suspect it does 