Evolution in the R_gas(90%)/R_dust(90%) vs. R_dust(90%) space of substructured disks evolved with DustPy code with external photoevaporation (F_FUV = 4 G₀). Disk characteristic radius fixed to r_c = 50 au. Different values of the position of the inserted substructure r_p and p initial surface density power law exponent values have been explored. The choice of p is combined with a radially decreasing α profile: α = α₀(r/r_c)^−p−1 with α₀ = 10^−3.5. The points associated with each trajectory represent the snapshots taken at 0 Myr, 1 Myr, 2 Myr, and 3 Myr, respectively.