The ditchlights are meshes and use a script in which corresponds with the bell button (B). It is possible to glitch the locomotive by causing the lights to be off when sounding the bell and then turning them on right after turning the bell off. I have gotten rid of the meshes and have replaced the lights with the JR light textures/coronas and I now use the ; to toggle the ditchlights. I had to rework them in the PEV attachment maker.