Adding a time machine and debugging data, like in microScript
In fact, I do not know exactly where to add this to the suggestions section or to the questions, because it can be formulated in different ways - "How about adding the functionality of a time machine and viewing debugging information from microScript to JS" or "Will the functionality of a time machine be added and viewing debugging information from microScript to JS?"
Anyway, it turned out to be an incredibly useful thing! and it's a pity that she's not in JS at the moment.