How to double hand in this game?

I'm new to PPD and I can't play Project Diva games without being able to double hand it (being able to press both x and down on the controller and have it register as an x press). In the Project Diva games the d-pad was just a mirror of the right side of the controller. Is there anyway to be able to do this in PPD. (Like a mod or something)

theres a program called JoytoKey you can use ive tried and it worked