Game Input MultipleXer

...so, doing some of the profiles for some of the games, and came to a little problem and I need a know-how from you guys if possible to do it.
Namely I need to assign three keyboard buttons to two DS4 buttons. 1 for L1, 3 for R1 and 2 for L1+R1 (this I don't know how).

So my question is, is there a way of assigning one keyboard button to 2 or more controller buttons so that when keyboard button is pressed, those controller buttons are pressed at same time?

Thanks in advance...

Yes this is possible.

Go to gimx-config and add a second binding for same button. Gimx-config will warn you that it's already bind and if you are sure to do that second time, just click Yes and proceed further. That button will now push two "buttons" on controller.