The moments_output command now supports computation of intrabeam scattering effect
using the diffusion matrix [69].
The alter_elements command now supports a parameter called disable that can be used
to disable a particular instance.
The insert_elements command now supports parameters occurrence_start and
occurrence_end, which provides a more convenient way to limit the insertion region.
The load_parameters command now supports a prefactor, which is applied to the parameter
values before assertion.