Currently in order to append any utms (which is critical for tracking success through Jebbit) a customer has to copy the URL and append it external to the builder. For whatever reason clients get so tripped up with this and want to save the appending links within Jebbit
Not sure if this could be an in-platform feature or better educational tools on this topic, but I agree that many clients have a hard time understanding the UTM parameters.
Here is UTM builder tool that I wanted to share https://ga-dev-tools.web.app/campaign-url-builder/