Snap windows by dragging.

• To the corner for snapping into quarters.
  
• To the sides for filling half of the screen (horizontal or vertical).
  
• To the top edge for maximizing.
  
• To the bottom edge for snapping into thirds.
  

Use SMBAct as an icon in the menu bar.

• Add Active Window and Window Switcher activation actions.
  
• Add common and less common actions.
  

Change the layout of multiple tiled windows.

• If two or more windows are bordering, resizing one window will also resize the others.
  

Assign a keyboard shortcut to preferred window

• For single-window application: use hotkeys to let specific window become a front-most window
  
• For multi-windows application: when the target window disappears and you use the keyboard shortcut again, it will display a notification informing you that the window has been lost. So user can use the fix/same keyboard shortcut to target a new window, and ask user to set a new keyboard shortcut to bring this window to the front.
  

Managing through different spaces (in macOS).

• Moving the active window between spaces.