Hello,
It was be nice if we could see the Regex Tool be a little more interactive. I am thinking a little more similar to the Formula tool where you can have expression display. I often use this site first https://regex101.com/ to practice a Regex formula before applying it. I love how this site highlights the data as you build the expression and also provide a comprehensive quick reference. Just an idea to make it easier for those non Regex experts.
Thanks,
Derek