This facilitates their use in simulations of complex chemical system, which are becoming more and more common. Many new properties are now available from sDFT/FDE and related methods, including the WF-in-DFT embedding methods. As examples, we mention versatile response codes that allow calculations of various types of optical properties and spectra, but also energy gradients for ground and excited states, which make structures optimized with these hybrid methods more easily accessible. In this context, we also note that the usage of approximate FDE as a diabatization tool made it possible to study phenomena related to charge-and spin-localization, which are often plagued in Kohn-Sham DFT calculations by the overdelocalization problem.