Sorry for the late reply,
Haven´t become a message for new posts.
Softimage lights won´t work because Octane haven´t light objects.
You can build a geometry and add a texture/blackbody emitter to it.
In the teture port, you can plug an IES light.
Sometimes, it will be included to create a light and the plugin will create a invisible geometry with the right textures inside the render engine.
Like a spot or a area light.
Last edited by face
on Sat Jul 23, 2016 5:06 am, edited 1 time in total.