on my 2013 nlx2500sy it has mapps 4, I have to go into the operator panel into settings and set the parameter to allow probing with the Y axis not at zero. keep in mind that whichever one you touch will want to offset to that tool station. so write it down if you want to make that other tool a different offset, and then manually input the measurements into the other offset location.
so on mine its in this order.....
settings.
selection 1 for operation panel
page down to get to page 2
look for "presetter with Y axis at zero position"
and select that for "invalid".
once you do that, make sure your probe arm is down and then move the Y axis with the handwheel to the position you want, and same with x or z, and then jog towards the presetter in which direction you are touching off.
hope that helps