I'm unable to locate the MF_UI_Scale node in the Material Function menu.

After adding a Material Function Call node, I tried to select MF_UI_Scale from the dropdown menu, but it’s not listed. How can I access or enable it?

I recently encountered the same issue and unfortunately was not able to find an answer.
ChatGPT is pointing out that it is a custom made function. However creating a custom function which is a copy of the one used in that tutorial is quite a challenge for a beginner. The creation of this custom made function is not described anywhere. I also need help regarding this topic.

If you search for ‘scale’ in the Epic folder you will find two MF that might be helpful.