First off, this is a great tool!

Something I often do with the output from dynein is convert it to a tabular format with https://github.com/alexwennerberg/json2csv

I wonder if making CSV or some other tabular format for displaying attribute values may be useful to add to this tool. It wouldn't work for all data (eg highly nested data) but could be valuable in a number of practical situations. If this is something that could be useful, I'd be happy to put together a PR for it