Why use a separate Keyboard? Input from either keyboard will be received as though typed in from a single keyboard--which could produce a lot of confusion.
The code for what you want can look like this in outline:
New window --> open your new window with title, location, dimensions and window type to suit your needs/preferences
Go to layout --> select the layout you want to see in the new window
Show/Hide Toolbars [Hide} ---> Hide the tool bars portion of the window--formerly down as the "status area".