Discs and planets of eight of the considered Kepler systems listed in Table 1 and shown in Fig. 3, here shown with the embedded planets. The quoted times are measured after insertion of the planets. The chosen aspect ratio, h, and viscosity, α, correspond to those models that most successfully could reproduce the observed planet orbits (see Table 2 below). The white dashed line marks the inner cavity edge and the light blue line the planet orbit. Top row: planets that correspond to our success criteria of reaching the observed orbit by ± 0.1a_obs, while lower row: systems that did not reach the observed orbit, due to their eccentric discs.