I loaded a material clip-file with success, connected it succeessfully to my surface..... o.k.
why can't I see the connected material shader in the node list window (left side above) ??????
You probably need to have the imported nodes placed into the group they belong to (say "terrain" or "shaders"). Then after that right-click on the group and choose "capture nodes".
I think the nodes should then be visible in the list.
No, doesn't function.... my sand file was already named to the special group shaders.... o.k. ....
if I click on the above tab node network then I see at last my sand layer....
but in the shaders list, no sand layer
now I found my mistake:
I didn't connect my sand layer (clip-file) to my planet... only to my surface layer !!!
after connecting it to my planet, the sand layer