Great Work Daniel!
This is my favorite Octane light rig so far. I really like the lighting tool and solo options.
There are two bugs I found so far (tested on win8.1/ R17.055 / Octane 3.06.2):
1) Switching between lighting mode and an activated target object breaks the rig.
But It seems this is not only an issue with your rig. Sstandard C4D Target-Lights have the same Issue.
Maybe you could disable one function if the other is enabled...
2) The solo function sometimes stops working. I am not shure what causes this exactly, but it has to do with adding/deleting several lights from a scene.
3) Not quite shure if this is a bug.
But when using a texture inside the spotlight (aka gobo) the coordinates of the projection seem a little bit of compared to the spec light generated by the light (bulb).
I would love to see you team up with
https://www.pingo.nu/hdr-studio-lights/ and make an awsome bundle
Keep up the good work!