VKB-SIM

Hi guys, I wonder if it is possible to set up the mouse like in the title: Mouse is controlled by the Right POV as usual, but the mouse buttons (and wheel) would be on the Left hand base (F1, F3 and En1).
Simply setting the left base buttons in "profiles/buttons" is not working, not doing anything (i followed this VKB tutorial: https://www.youtube.com/watch?v=io2qSKM0gs4)
Thank you in advance.