Hi analysis-standard,
This is the Forger forum. For any questions about Cinema 4D, please use
https://cineversity.forums.maxon.net/category/2/question-answers
I would suggest checking out the Data Mapper> Age to Radius.
Don't forget to switch on Particle Group> Draw Radius
If you need a Cloner, the Particle Scale slider should not show 0%
If you ask in the Cineversity Forum, I will share an example.
Please understand that I can't answer this in more detail here. Otherwise, I have to do it for everyone about Cinema 4D, and the idea of a forum is no longer given, as this is, as I said, the Forger Forum.
Cheers
Thank you