Hallo,
I would recommend this application I use with Ubuntu Mate since 12.04
http://www.giuspen.com/x-tile/
X-tile is an application that allows you to select a number of windows and tile them in different ways.
X-tile works on any X desktop (gnome, kde, xfce, lxde…).
The main features are: many tiling geometries, undo tiling, invert tiling order, optional system tray docking and menu, filter to avoid listing some windows, filter to check some windows by default, command line interface.
I find it very useful, especially with keyboard shortcuts or panel launchers.
screencast x tile see full screen
XTile with Marco windows manager works perfectly, on the forum I’ve read that it works also with Compiz.
I have prepared icons modified by me with gimp, to put in the panel the most used command launchers, otherwise there are also icons in /usr/share/x-tile/glade , but mine are more visible.