The category object defines the categories that are displayed in the analysis step gallery. It has the following format:
{ "type" : "category", // optional "id" : "<id>", "label" : <label>, "steps" : [{"type" : "step", "id" : "<step ID>"}*] }
The order in which the steps are listed in the steps array determines the order in which the steps are displayed in the analysis step gallery at runtime.