Need Lightswich Expert for small fix.

Currently we are using cosmopolitian Theme & Shell for our one of the Project built in Lightswitch. now we want to add custom Metro style Menu so hierarchy of menu can be managed. to do this we want to make small customization in shell by placing one button on top near the user name like "Home" and when user clicks it our menu screen shall get open. TODO: 1) Customise shell to remove original menu and add one button "Home" near username. 2) Create Metro Menu which shall be populated dyanamically from our DB where we have stored menu name with categoryies and icons needs to be displaed. Timeline : Max 2 Days