Dynamic window manager

In computing, a dynamic window manager is a tiling window manager where windows are tiled based on preset layouts between which the user can switch. Layouts typically have a master area and a slave area. The master area usually shows one window, but one can also change the number of windows in this area. Its purpose is to reserve more space for the more important window(s). The slave area shows the other windows.
Tiling window managers that don't use layouts are called manual tiling window managers. They let the user decide where windows should be placed.
X Window System.
The following dynamic window managers are available for the X Window System: