Currently, without a script, you can't render a .orbx file for each frame in full scene reload mode, but yes, something like that could be possible. I'll try to add this feature at some point in the near future.
Computer Graphics Software Developer Octane plugin development and support: LightWave and Houdini
Hi Juanjo, It's ok to export orbx sequences for small scenes, but we are getting more and more complex scenes, like cars/engines, hundreds/thousands of frames. Orbx sequence is not an option. A proper orbx exporter that could differentiate objects that require full reload and the ones that doesn't (ie fx require full reload, car engine doesn't) is absolutely necessary for us to use houdini/octane at it full potential.