It contains all the parameters you used for a particular job as well as all designs and their positions on the working area. Each laser job is first translated into GCode which is then sent to the laser unit.
It is possible to reuse these GCode files or to download them.
To do this you have to click on "Only show GCode files" in the design library on the left. If you laser a GCode file again, it is not possible to change the job settings, so you can not adjust the position on the canvas nor the material settings. Currently only one GCode file can be processed per job.