Dumb question about editing a node

Hi Robert,
if you have a look at this discussion, you can see that the client-side code differs a little bit from the server-side code:

var configNode = RED.nodes.node(configNodeId);

There are other people who had the same questions as you in the past (inclusive me ....).
It is always useful to search on Discourse when you are stuck, because there are already quite some code snippets available.

Good luck with it!
Bart