I do not have an update for the Toolbox, but instead a utility program for viewing a snapshot of in-memory game data. It is an outgrowth of the WC1LiveViewer program, except not live anymore and with much more data. It is a bit slow, but it works for my needs.
The Data tab provides a fairly extensive hierarchical view of the game data set and can be filtered using keywords. The InFlight and Mission tabs provide a specialized view of a subset of the data.
As an example, let us enter an asteroid field. Using the data tab and filtering on hazards, we can see the values for the asteroid field. The game has populated in-flight object slots 13 to 20 as asteroids and from the in-flight tab we can see related values grouped together. If the object has an image block associated with it, a preview will be shown.