Reply to Behringer DJX700 effects button mod

Hi!

I'm considering a fix/mod for my djx700 mixer, but i lack the information to continue, so i hope someone here could help...

My effects on/off button broke the other day, so i decided that i would replace it with an arcade button.
But the problem is, that the base of the button is too deep to fit on the board(second pic). Now i really don't want to use a spacer, because the button would stick out of the mixer too much, so i need to know if it is safe to make a hole in the mixer motherboard (the board pic with the white circle).

As far as i can see there are no other connections going trough the board on the spot i need to drill other than the led and the effect button itself...