I mean is there possible to play like these:
2 triangle buttons (W and up arrow)
2 square buttons (A and left arrow)
2 cross buttons (S and bottom arrow)
2 circle buttons (D and right arrow)

I found some songs really hard to be pressed with one fingers because they're too near and fast, help me please thankyou :D

No, you can assign to the "square, a cross etc" only one button. The PPD uses a different game mechanics than in PD.