Zoomed-in view of the simulated spectra zoomed between 6 and 9 keV for four different epochs using CLOUDY photoionisation code. The evolution of the absorption properties with the change in the disc mass-accretion rates (as seen from the fitted data) are plotted in each panel. The red and blue lines correspond to ξ = 100 and 1000, respectively. The micro-turbulence of v_turb = 1000 km s⁻¹ is used in the simulations for all epochs.