Spawn Per Unit - Ignore Movement on Axis

I’ve searched high and low but can’t find an answer to this and am about ready to pull my hair out.

How do I use the “Ignore Movement Along Axis” property of the SpawnPerUnit emitter clearly referenced in the documentation here: Spawn Modules | Unreal Engine Documentation, and in the screenshot in the first post here: Holes with Spawn Per Unit in a Particle Emitter - Platform & Builds / XR Development - Epic Developer Community Forums (unrealengine.com)

This is exactly what I need to make my VFX work PERFECTLY but can’t find the option trying to add any modules or looking in the niagara script for Spawn Per Unit.

Please help!