Reply to Arcade buttons on djtech imix

I'm wondering if someone here has arcade buttons modded on their imix/imix reloaded?

I unscrewed the device earlier today. The vci has two separate circuit boards for the four buttons, the imix however dont. The whole device is on one big circuit board.

So is it still possible? I'm guessing no because there is no more room under the panel, the big circuit board takes up everything. All tough there is like 3 cm on the height left, but I guess that wont help.