I have found an small bug in the razor-panel plugin "mainmenu". When you launch the menu using a keyboard shortcut it doesn't gain focus and you can't navigate it using the keyboard.
I don't know if this was corrected, in the case it weren't here is my solution.
In the file "razormainmenu.cpp" in the line 130 I have done some changes. Please excuse me, if i'm not sending you a diff file is because i don't know how to build it.
// Just using Qt`s activateWindow() won't work on some WMs like Kwin.
// There are two solutions:
// activate window with Qt call and then execute menu 1ms later using timer,
// or use native X11 ArfPI calls:
// Record previous active window
Window previousWindow = xfitMan().getActiveWindow();
// Restore previous window
University of Informatic Sciences (UCI)
Nova Light Development Team
Alexis López Zubieta