Got it working when I gave it a try converting the basic process today.
The "get material color" and "update emission GI" actions are required from the ecosystem.
Then what you do is you get the color "_EmissionColor" (in the name slot) using get material color. Store the color var. Use get RGBA and break up those values into variables. Use a float with a multiplier number you want (your light intensity control) and then multiply the R G B variables individually by it. Then you can use set color RGB on your color var. Next you need an update emission GI action or GI state won't actually change, and now a set material color as well to adjust the actual object's color.
If anyone wants a pic of that basic working example's action list let me know.
And to sum up what it actually is: basically having the ability to have normal lighting controls like pulse, animate, color change that works with the GI "real-time" lights.