Start menu button title in MATE

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http://ubuntuforums.org – Hello dear people. My question is simple: I want to put a title in the start menu (I configure the upper panel and changed the apps-places-system menu with the single icon menu that works like a Win start button). In XFCE, that is a piece of bread to do, just right click-> propeties -> button title. I want to do the same with MATE but i don't know how, and maybe my ability to google something is not enough to find it on my own. Any advice? I'n using MATE 1.6 in Xubuntu 12.04. Thanks. (Hardware)