Ok, I've been working on creating my own custom mame config file lately.  I have a question about setting up the X and Y axis for some of the controls.    As an example, is the player 2 trackball.  Now, I only have one trackball, so I am trying to just set this up so that the player 2 trackball would be controlled by using the player 2 joystick.   Below you will see the section I have made.   What I get confused about is the "standard" section.   You can see I put in my own controls in the decrement and increment spots, but what would I put in the standard section?
   <port type="P2_TRACKBALL_X">
                <newseq type="standard">
                    MOUSECODE_1_XAXIS
                </newseq>
                <newseq type="decrement">
                    KEYCODE_G
                </newseq>
                <newseq type="increment">
                    KEYCODE_D
                </newseq>
            </port>
            <port type="P2_TRACKBALL_Y">
                <newseq type="standard">
                    MOUSECODE_1_YAXIS
                </newseq>
                <newseq type="decrement">
                    KEYCODE_F
                </newseq>
                <newseq type="increment">
                    KEYCODE_R
                </newseq>
            </port>
Would I put something like KEYCODE_F OR KEYCODE_R in there?  Or would I set it to NONE?   Or what should I do here?
Thanks!