As far as I experienced, all the Gcode S3D generates is in absolute positioning. I miss the option to change this to relative positioning.
While I am able to change to and back from relative to absolute positioning and vice versa via scripts in between the print, the generated main-gcode is always written in absolute positioning.
There is a checkbox to allow relative extrusion-distances, and for me, there should be a checkbox to allow for global relative positioning.