The node rename is not actually supported by Poser - it (external name) is officially used to present the names in non-English languages, such as in Japanese, while having the internal names be in English for coding purposes.

We get away with changing the external name, but it isn't carried through in all cases. For example, if you copy and paste such nodes, they lose the custom names.

Nevertheless, I do this all the time, by putting the name I want into the material file, since I make materials with matmatic, not with the Poser user interface. However, the rename node wacro or similar will do it. There are a couple versions around. VSS also does node naming, because I take advantage of that feature to know what an image's job is.

All my experiments show that you cannot change the parameter names - Poser won't pay attention to the modified values. For that matter, I would expect it not to pay attention to the node names either. But Poser is consistent in that it is inconsistent.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)