Application of the MmD method for H β & [O III] for mock lensed quasars simulated based on spectro-photometric monitoring data of Palomar-Green quasars. For each pair of spectra separated by a delay Δt, the continuum of one of the spectra has been artificially microlensed by μ = 1.5 and M = 1 has been assumed. For legibility, only the fraction F_Mμ (red solid line) and the reference spectrum (blue dotted line) are shown. Each row corresponds to a different object. The time-delay between the pairs of spectra is increasing from panel a) to d). For each panel, we provide M retrieved with the decomposition, the variability in the continuum ϵ_c and in the line ϵ_l.