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Changing Specific Parameter in Particle Component

I have been looking around on the web for a solution to this.

I need to change a specific parameter in a specific emitter in a particle system that is attached as a component in my blueprint. As we all know, the Infinity Sword assets have just been released for use and I am playing around with them, trying to re-purpose some of them for my game.

One of them is the Lightning Effect and what I need to change is the Spawn Rate, specifically the Rate Scale.

0f65b2832edac1c8908c02ea60618e2648d77831.png

I have now marked the “Spawn” module in the “Lightning” Emitter and I see the following properties:

6c22ac7f8e1b7c5a594577142707237681b3af3c.png

How would I go about changing the 1.0 constant during gameplay through a blueprint?

No help with Particles? :c

bumping up this post

Hmm, have you tried the solution in this link?
https://answers.unrealengine.com/questions/91012/fade-out-particle-emitter-spawn-rate-via-blueprint.html