Group and Tab Windows
Selecting and grouping windows
Windows can be selected in two ways:
using the mouse, by pressing <Shift><Super>Button1; drag a box around windows to select them
using the keyboard, by pressing <Super>s to add the currently focused window to the selection
After they have been selected, they can be grouped together, ungrouped, or individually removed from the group.
Group Windows: press <Super>g to group the selected windows together
Ungroup Windows: press <Super>u to disband the entire group of the focused window
Remove Group Window: press <Super>r to remove the focused window from its group (leaving the others grouped)
A window action performed upon one window can also be simultaneously done to all windows in its group. The following options are available for determining which actions are applied to the entire group:
Move every window in the group
Resize every window in the group
Maximize every window in the group
Minimize every window in the group
Shade every window in the group
Raise every window in the group
Grouped windows can also be tabbed together, that is, combined into one tabbed window, with the ability to switch between them as though they were tabs within a single window.
To tab the currently selected group, press <Super>t.
Once a group has been tabbed, the single remaining visible window will have a tab bar visible when hovering the mouse cursor over its titlebar. The tab bar contains live thumbnails of all the windows in the group.
Using tabbed windows
Click on a thumbnail in the tab bar to switch to the corresponding window. Alternatively, <Super>Left and <Super>Right can be pressed to flip through the tabbed windows.
The order of the tabbed windows can also be rearranged by clicking and dragging the thumbnails within the tab bar. If there are multiple tabbed groups, then thumbnails can also be dragged between different tab bars to move windows between groups accordingly.
Once grouped, a colored glow will appear around each of the windows. If you want to disable the glow, you can do so in CCSM by disabling the option at Group and Tab Windows plugin -> Glow tab -> Enable Glow.