[VfxGraph] How to set Attraction Force over lifetime

I am trying to set the Attraction Force of the ConformToSphere component according to the normalized life/lifetime of the particle. Is that possible?

Searching Life gives me two options, age over lifetime and get attribute lifetime, with both options not achieving what I want.

Nevermind I got it with the Age over lifetime (0.1) and passing that into the curve sampler.