For Next Generation Control:
Go into Service mode. Go to the Parameters > Factory Settings [1,2] page.
Type in .078 press [F1] 
Enter the axis letter and press [F2] to set the tool change offset .
Set the offset for both X and Y axis.
Use the tool changer RECOVER mode to move the arm until the values of Arm at Origin and Arm at Stop are 1.
Push [ZERO RETURN], then [ALL]. Remove the split tool from the double-arm and spindle. Go out of Service mode.