Hi Philip

Here is an article that will teach you the basics of Midi, Basic Midi this will allow you to understand the Midi implementation chart for the keyboards you mention, (Usually at the back of the manual) to see if they can do what you want. (Remember arrangers were not really designed to be Midi controllers so there will be limitations)

To see what you can do with an understanding of basic Midi, you may be interested in this article here, which while not directly relating to the keyboards you mention, should give you an idea of what can be achieved with minimal work.

Hope this helps

Bill