Speed limit setings

Can I change Limit Speed settings to other values? I need to go very sloow.

Thank You
it works correctly:
"SpeedLimAxis ROB_1, 1, 4;
SpeedLimAxis ROB_1, 2, 4;
SpeedLimAxis ROB_1, 3, 4;
SpeedLimAxis ROB_1, 4, 4;
SpeedLimAxis ROB_1, 5, 4;
SpeedLimAxis ROB_1, 6, 4;"