Installing Custom Script Formatter?

The docs say that Katalon Recorder supports custom script formatters. I want to try out the sample, but I don’t see how to install it.

I’ve read the one page of docs here - https://docs.katalon.com/katalon-recorder/docs/writing-custom-script-formatter.html#introduction

And found the GitHub repository with a short readme here - GitHub - katalon-studio/katalon-recorder-sample-plugin: This is a sample plugin for Katalon Recorder 3.4.0.

I tried using the Add an Extension Script option, but that didn’t seem to work.

So, how do I install the GitHub sample into Katalon Recorder?

Thanks.

Please see this video for the instructions