Universal Robots + Node-Red

Greetings URCommunity,
I am new to Node-Red and would like to know what kind of programming is it possible to make within the Universal Robots functionalities.
I have imported this from here but I don’t what this does or how to make it work.
I clicked on Start on the Deploy tab but nothing seems to happen.
I would appreciate any help from anyone who has or has had experience with Node-Red communication with UR
Best regards