Best-fitting MOKA^3D model used to reproduce the XID2028 bubble+jet kinematics in Fig. 9. Upper panel: projected unweighted moment 1 map. Middle panel: 3D unweighted model, i.e. the intrinsic cloud distribution before weighting them on the observed datacube. A schematic 3D view of the assumed toy-model geometry and kinematics is superposed. The QSO position is shown with a star, and the arrows show the outflow direction together with the expansion velocity that inflates the bubble (see text). Lower panel: 3D model. Each cloud is weighted based on the observed flux for its location and velocity in the data.