Pupil directions for "NE, NW, SE, SW" on number pad

I'd love to be able to use my number key pad to control the in-between "NE, NW, SE, SW" directions using individual keys, instead of the combo of holding two keys at the same time. For example, on a number key pad, the 9 key would be "NE" (i.e. up and to the right), instead of the current two-key press of 8 and 6 at the same time.

That would make it a smoother move in a live performance b/c sometimes it's hard to press and release two keys at exactly the same time, so the pupil jumps a little bit.