To do the same yourself, go to Atom > Keymap (Mac) or File > Settings > Keybindings > Keymap (Windows/Linux) and paste the following for Mac:
'atom-text-editor':
'ctrl-cmd-]': 'editor:auto-indent'
Cmd + Shift + D (Mac)
Cmd + Ctrl + Up (or Down) Arrow (Mac)
Cmd + D (Mac)
Cmd + U (Mac)
Cmd + Ctrl + G (Mac)
Cmd + / (Mac)