Known Issues
Alpha is not supported on the area light, an RGB image (pre-multiplied by the Alpha) is used as the light content.
These are the manual steps needed to create an image based lighting setup that is compatible with HDR Light Studio.
When HDR Light Studio creates an IBL Hook for you, it generates this setup.
Create a RedshiftDomeLight in the Hypershade window
In the Attribute Editor use the Folder icon to select a standin HDR or EXR file for the Dome Map
Ensure Map Type is set to Spherical
The IBL hook is now valid. HDR Light Studio will now see and connect to this IBL setup.