Enable background, footprint and roughness by default
If background and footprint have not been set up in the instrument view, they do not appear in the parameter tree of the job.
Sometimes the need for these parameters appears during the fitting, but there is no possibility to add them in the middle of the process, only start a new job.
Same about roughness; for short-wavelength radiation there is no absolutely flat interfaces in real world.
These three parameters are quite "inherent" for the real measurements and sample and thus it may be non-obvious for the users that they should be specially enabled before the simulation.
DEVA workshop also showed that sometimes users cannot find these parameters in tree because they simply haven't set them.
Zero starting values for background, footprint and roughness give the same computational result but can be changed in the process.