screen = CreateObject("roGridScreen")
screen = CreateObject("MYroGridScreen")
You can create "intrinsic" objects in BrightScript itself to use in your scripts. However, to be clear, these are not BrightScript Components. There is currently no way to create a BrightScript Component in BrightScript, or to create intrinsic objects that have interfaces (they only contain member functions, properties, or other objects).