Is there a way to toggle individual particle emitters in a particle system via unrealscript?
This method in ParticleSystemComponent does the job:
/**
* Calls SetStopSpawning with the given emitter instance passing in the given value.
*
* @param InEmitterIndex The index of the emitter instance to call SetHaltSpawning on; -1 for ALL
* @param bInStopSpawning The value to pass into the EmitterInstance SetHaltSpawning call
*/
native final function SetStopSpawning(int InEmitterIndex, bool bInStopSpawning);