Data Viewer is outstanding trying to debug you scripts, but many times there is just way to much information to see in the Current Tab. In a bigger script there could be +100 fields and many variables that are affected throughout the script and you already might have $$Variables already existing. Therefore I suggest that we get a way to filter in the Data Viewer in two different ways.
1. A search filter where we like when we want to choose a specific Field/Script/Function can write and easily just scroll through things that are part of current script
2. I also think that would be really good to see different types, so also add a Type Filter
Where we as default get "All", but then from a Value List can choose Field, $$Variables and $Variables. Then we more easily good narrow down to find just the field/variable that we need to have a closer look at.