Dear ALPS users and developers, I am using the ALPS' DMRG application to run some simulations on a Heisenberg chain. Is there any way to output in the hdf file, or an external file, a certain number of eigenvalues of the reduced density matrix at each step? I know setting VERBOSE to 1 it prints in shell all the density matrix eigenvalues, and I could script this output. But is extremely long and not very convenient, so I am wandering if there is a better way of doing it. I thank you in advance for any help. Kindest regards.