Joachim Backes <joachim.backes <at> rhrk.uni-kl.de> writes:
the gnome-terminal in F21 does not allow to open a *tab* in the
terminal
window. I can only open a new terminal *window*.
https://bugzilla.redhat.com/show_bug.cgi?id=1111548
For now you have to use the hidden keyboard sequence Ctrl-Shift-T.