I’m trying to group columns, similar to what happens in a pivot table when I add two fields in the “column” field well. However, for the heatmap visualization, it creates a drill-down with some aggregation function being applied. This doesn’t make sense for my use case, I don’t want a drill down or any aggregation. I want the same columns as before but simply want to group them and have a group name on top. Is there a simple way to implement this for the heatmap visual?