[PyMOL] Adding a viewport

[Charles Moad]

	I am assuming a new viewport is added to the main window when the 
sequence viewer is displayed.  This brings up the question, how possible 
would it be to create a plugin that creates yet another viewport in the 
main window?  Where would I look in the code to do this, or would this 
require actually modifying pymol source files?

Thanks,
        Charlie