There are a couple of places where you can add the Fixture Offset in Post Builder.
Ths simplest method is to add the Gcode to the Rapid Motion block.
The other option is to use the Initial move block - This is the first motion after a tool change. Add A block with the G00 Gcode for the fixture offset and the X motion, Y motion. You may want to Force the output of these blocks so it will always output them after a tool change. I usually add an additional block with the Z motion and the H code (tool length offset)
John Joyce -NC Programming Supervisor
Barnes Aerospace, Windsor CT