Component (quantity and scale) input

Hi,

I am wondering if anyone knows how I can decide the number and scale of input components when working with Grasshopper? (or if it is even possible)

I am creating a project where I reuse old materials, and there are therefore limitations of what I have accessible. The idea is also that the design would change based on the number of input (due to some materials might be damaged when it’s dismantled.

Thanks