Смена раскладка клавиатуры по Shift + ALT в Centos 7.x

Systems tools > settings > keyboard > shortcuts tab > typing > modifiers - only switch to next source > from the drop down menu choose alt+shift

Запуск терминала по Ctrl+Alt+T

Go to Settings »> keyboard »> Shortcuts tab »> Custom Shortcuts »> click “+”

Name: Terminal Shortcut
Command: gnome-terminal

Now a new shortcut added with status “disabled”. Click on “disabled” word and assign your shortcut.

For me, I prefer Ctrl+Alt+t to run Terminal

Запуск System Monitor по Ctrl + Alt + Delete

Name: System Monitor Command: gnome-system-monitor