Extract Scene / Section Plane mapping

Hi everyone
I’m using the C api to read data in SKP files.
I can’t find how to extract which Section Plane is active in each Scene.

Any idea for me? This exists separately for each Scene the UI and obviously has to be
stored somewhere in the SKP. I’d really like to read it from the C api.
Thanks!

It’s currently missing from the C API (SU2016).