how to import exr to use as environmental lightmap

Hi all,

I’m able to import my exr file into my asset with a simple drag and drop. I can apply it to an object in my scene but I don’t see how to use it as a background lightmap environment. Any help on the correct workflow would be greatly received. Thanks

Answering my own question here in case it’s helpful for others.
I found this youtube tutorial walks you through the solution.