Default material node setup

Hi there.
By default, when you turn on nodes for the Cycles material, you get a diffuse node and an output node by default.
Any way I could change that to something else?

I want it to be my PBR note setup.

up up up up

only by using python… you need to ‘substitute’ the original ‘new()’ function with something that recreates your node setup.

at worst you can change the UI script for that
but still a lot of work

happy cl