Quote - ..  Can this be done manually..

Yes, it's not so difficult.

Open up the file in your text editor.
Find the present name of the node that you see on screen.
It will  be something like...

node "math_functions" "Mul_3"

a couple of lines down you'll see:

name "Mul_3"

Change this to whatever name you want to appear on the screen

name "My magic node"

Save and you're done.

Rô

My favourite question is "Why?", my second favourite is "Why not?"