I'm not sure if this is useful for your particular usage requirements, but have you looked into the Utility Network Trace solutions widget on Github?
This widget would allow users to run traces on Utility Network services in webapps.
Hey, Alex. I believe I did see that a few weeks back before I posted this message, but at that time I had noticed the tool was 2 years old, so I wrote it off as being incompatible. However I did notice it was updated recently, so I have to assume it was tested on the new UN so I will check it out. Thanks.