Default [Q] keyboard shortcuts

anyone know if there is a physical keyboard shortcut for copy, paste and undo? ive read about the menu key + c, a, v, but have yet to read anything about the undo shortcut, even if i have to touch the screen i wouldnt mind too much. i use handcent sms , so if i shuld change apps i dont mind. running a droid 3 in aus. thanks for any help in advance.