How to make terminator the default console?

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So, you have two questions, and both of them are answered previously on ask.fedoraproject.org.

1. How do I change the default terminal

If you have dconf-editor Go to (org->Gnome->Desktop->Applications->terminal) and change the value. Then reboot and check.

or

gsettings set org.gnome.desktop.default-applications.terminal exec terminator

2. Terminal Key-Shortcut

Go to System Settings->Keyboard and add a new short-cut.

In the Command field you write the command you want to run, associated to the shortcut you will provide later. For example, one of my custom shortcuts is:

Name: Terminal

Command: gnome-terminal --profile=Default --geometry=95x35+250+60

Then click Apply, and in the second column you will see the field Disabled, where you need to type the key combination for the shortcut.