Search text through all files at once
Ctrl + Shift + f

Re-open a closed editor
Ctrl + Shift + t

Delete previous words
Ctrl + Backspace

Select multiple words (select texts word by word)
Ctrl + Shift + Right Arrow or Ctrl + Shift + Left Arrow

Select the same word multiple times
Control + d

Duplicate line
Shift+Alt+Down and Shift+Alt+Up

Move to beginning/end of file
Ctrl + Home or Ctrl + End

Move line up/down
Alt + Arrow Up or Alt + Arrow Down

Deleting a whole line
Ctrl + x

Duplicate cursor above/below
Control + Alt + Arrow Up or Control + Alt + Arrow Down