I want to open a new Konsole tab with my keyboard. Is there a shortcut for that?
Works for me (in Kubuntu):
System Settings -> Shortcuts and Gestures -> Custom Shortcuts -> right-click -> New -> Global Shortcut -> Command/URL -> type a name (i.e. "Terminal" or "Konsole") -> choose tab "Trigger" -> click on None -> press Ctrl+Shift+T -> choose tab "Action" -> enter "konsole" for Command/URL -> apply
By default this combination (Ctrl + Shift + T) works in Ubuntu, but not in Kubuntu.