I have installed the guake in my ubuntu 18.04 . According to this question How change default terminal in “open in terminal” in GIO, I followed it and set
gsettings set org.gnome.desktop.default-applications.terminal exec /usr/bin/guake
gsettings set org.gnome.desktop.default-applications.terminal exec-arg "-x"
After that, guake can be opened by ctrl+w successfully. But if I open any file and try to "open in terminal", it dosen't work, the old terminal (the orgin terminal of gnome) will be opened.
