(Light (Hν) and Heat (HΔ)sliders) also a fix (if possible) for acids and poly-atomic allotropes (I can't get H2SO4 to work without it turning into water and ozone even when its by itself or have sulfur be in its S8 configuration (I use ASED-MO and sometimes Universal force fields (but that one doesn't seem to do bond switching)) Maybe enclosure areas where you can do a reaction without an atom bouncing off into infinity.