distinguish between shift+8 and numpad *

on MS3 I used numpad * for staccato and shift+8 for adding an octave above. I can't get MS4 to recognize these as different keys, even though they are different in the xml file:

    <SC>
        <key>add-staccato</key>
        <seq>Shift+S</seq>
        <seq>NumPad+*</seq>
    </SC>

    <SC>
        <key>interval8</key>
        <seq>*</seq>
    </SC>

same for -

how do I get MS4 to treat these differently?