Close window:
Mod + Shift + Q
Open the Tnerminal:
Mod + Enter
Open D Menu:
Mod + D
Open new horizontal Terminal on right side:
Mod + Enter
Open vertical Terminal:
Mod + V
Mod + Enter
Change window Focus:
Mod + keyboard arrows or J K L ;
Stack windows:
Mod + S
Return to Tiling mode from Stack mode:
Mod + E
Resize window:
Mod + R # resize mode
Use arrows to expand or narrow
Move window:
Mod + Shift + arrows
Create workspace:
Mod + number
Move window to workspace:
Mod + Shift + workspace number
Mod + Shift + E
i3lock