All functions like pCont.ParticleAge or pCont.ParticleSpin need to know, on which particle they are applied. That does the particleIndex = i and since…

No wonder it worked…you followed my advice

I think you have to swap these two lines to get the CurAge Variable get the correct Age value: CurAge=pCont.particleAge pCont.particleIndex = i But …

Maybe pCont.useAge = true in the “ChannelsUsed” part.

Just downloaded it. If this works as intended, this will be my new favourite tool. :love:

The Help does exactly tell what a Mapped Function is: You can apply Mapped Functions to Object sets (eg ‘move $Box*’ would move every object with the …