Styling custom columns
#Premium feature
After you have added a custom column, you can style it by selecting the step (Add column) from the Applied steps list. A style editor will appear below the Applied steps list.
Marker showing which column the step is affecting:
The step on the right side is selected. Then the triangle icon appears on the column headers of the relevant column:
If you have a long list of steps that affect different columns, this will help you see which one your on.