Infinite Menu Help

Hey Peeps!

I’ve followed this tutorial from this site
Infinite Menu

but what I want to do is control this infinite menu by using 2 buttons.

one button to send the menu to the left,
and the other to send it to the right.

instaed of moving the mouse to the left & to the right.

Is this possible? if so coud someone help me with this.

Cheers