I find the workflow for copying and pasting nodes doesn't work very well.
I use a Wacom tablet exclusively using c4d on my PC.
I can edit an Octane Material, and copy and paste nodes within that material using Control C & V.
However this doesn't work when copying and pasting between two different material node networks.
It works if I plug in a mouse and right click to choose copy and paste.
I thought holding control and using the wacom pen would give me a right button menu to do the same but it doesn't work.
It would be helpful if under the Edit menu in Node Editor we could have copy and paste controls.