How to assign aircraft certain .Fx files?

I have created a few different lighting .fx files for aircraft in the sim. I know that the [LIGHTS] section is now in the aircrafts system.cfg file.

I place my newly created .Fx file in MSFS\Official\OneStore\fs-base-effects-legacy

I then change the Systems.cfg EffectFile: file to match the name of my .Fx file (see circled section in photo)

Launch the sim and nothing has changed…Am I missing anything here?

Thank you for the help!