Representation of SOM cells targeted by the KMOS programme. Left: coloured cells are filled with high-quality spectroscopic redshift measurements in the three fields targeted by our survey, whereas empty cells are occupied by observed and not spectroscopically confirmed targets. The high-quality spectroscopically assigned cells are colour-coded according to the occupation level, meaning the number of validated galaxies occupying the same colour cell. Middle: SOM cells filled with high-quality spectroscopic redshift measurements are colour-coded according to the assigned z_spec. Right: observed but still empty SOM cells are colour-coded according to the z_phot of the observed targets, whereas high-quality spectroscopic redshift measurements are coloured in white.