Particle Parameter for Lifetime

This tutorial suggests, “Try editing color, position, scale, lifetime etc”:

It also points out that parameters that are “utilized very often” have a setup that “is as easy as right-clicking and choosing Set up particle parameter. Note: this is not the case with all particleParameters.”

But it doesn’t tell me how to setup a parameter that does not have the right click setup. Can anyone point me in the right direction? I’m tying to adjust Lifetime.

I would also accept any other solution to editing the length of an anim trail at runtime

It’s in the distribution type. Change the distribution to Particle Parameter.