I think this script has a bug that causes it to not work if you have caps lock or num lock on. This is because it wasn't coded properly to handle these (which I don't blame it for, our api for key events was bad until 94.0).
I know it says it does not work in your mod so i got vanila tpt to use it, i used it once and the next time i opened tpt i hit ctrl t, the keybind for it, and nothing happened. i redownloaded both the script and tpt several times but nothing worked