The Select Columns & Aggregation section in the Query Builder allows users to select columns for the dataset and apply aggregation options.

Click + Add Column to add a column selection.
Each column selection includes:
- Aggregation – Select the required aggregation option. The option shown is No Agg.
- Column – Select the required column from the dropdown. The default selection shown is *.
- Alias (Opt) – Enter an optional alias for the selected column.
Multiple columns can be added using the + Add Column option.
The X button can be used to remove a selected column.