Here is a script to put in a python script tag (sorry I don't know how to force indentation in post replace * by tab):

Good script. Thanks.
But when I write my own value to settings like: octSet[c4d.SET_DIRECT_MAXSAMPLES]=2000.0
setting changes but in Octane Settings window nothing happens and ...

Thank you! But one more question. How to refresh "Octane Settings" window after setting new values?

I'm new to scripting. Could you tell me how to set and get values from "Octane settings" window (Kernel) using python??