Text selection

• Delete current line: Ctrl + D (PC), Command + D (Mac)
  
• Select all: Ctrl + A (PC), Command + A (Mac)
  
• Select text beginning at current cursor position: $\Uparrow$ + ← or $\rightarrow$ (PC), $\Uparrow$ + ← or $\rightarrow$ (Mac)
  
• Select line above or below current line: $\Uparrow$ + $\Uparrow$ or $\downarrow$ (PC), $\Uparrow$ + $\Uparrow$ or $\downarrow$
• Select text until start or end of current line beginning at current cursor position: $\Uparrow$ + Pos1 or End (PC), $\Uparrow$ + Home or End