Good JSON editor but other features remain a mystery

This is great for editing JSON. You can edit anywhere inside the JSON. (Someone was saying otherwise.) There are also some fancy features for replacing multiple values at once. I have not used this feature but there is at least one video demonstrating it.
The only reason for 4 stars not 5 is that there are a lot of other great features it has that no one on my team can figure out how to use yet. We are too busy to spend hours trying to figure it out. And an email to support has so far gone unanswered. (About a week and a half now.) It is a shame because we could really use these feautures and several of us already own it.
They did put some time into trying to creating videos to show how to use it but some real documentation and more about setting it up for custom use is needed. (And you will want to slow down some of the videos! :o) )

GreggCasey about Cocoa JSON Editor, v1.2.5