This could allow real polyvalence, changing dynamic or static parameters such as :
-long term / short term / cracked modulus,
-Static / dynamic stiffness values for supports. Sometimes necessary to define two or three sets of dynamic parameters
-Primary or secondary elements definition : ie present in static cases, soft in 1rst seismic config, normal in second config
With a tool box to set parameters.
All in one model ! So if geometry changes only one model to change ...
Further, ability to set a temporary support, converted in force in second analysis (like stages but better...) - For composite structures (if developed)