[Closed] access MR param in standard material

Hello people,

Is it possible to acces the MR parameters of a standart material by script (the MR connection rollout) ?
I couldn’t find it in the doc, as it seems the MR material features are for full MR materials, not the MR connection. Or did I misunderstood something ?

what I’d like to do is change by script the MR displacement value.

thanks for your help !

Jerome