It would be very useful to have a hover tooltip over a data field that might be extensive like a JSON result or an array of data. Displaying the first 250 characters would be very helpful to quickly view JSON generation by another tool, an API call, etc. This would help accelerate the process of removing characters that EM doesn't consider to be valid JSON. Often times, we have to remove a few characters at the beginning and end of JSON for the JSON Parser action to work correctly. This is only example, and I am sure it could be helpful in others as well.
Thanks!