find this line

NEWGAME 0;1000 1 0 0 0 3 500 0 0 classic 0 0 100 0 0 0 1 0 2 0 0 0

change the underlined number to 2, like so;

NEWGAME 0;1000 1 0 0 0 2 500 0 0 classic 0 0 100 0 0 0 1 0 2 0 0 0

this will enable dms and grip and disable dq and frac