The user had been added to the All Rows policy of the data fusion. 'Everyone with DataSet access' was added to a dataset that was used as input to an ETL, and that ETL's output dataset was one of 3 input datasets to the data fusion. Once 'Everyone with DataSet access' was removed from the upstream input dataset, the user…

@daniel_cruz_2016 the Slicer card General Properties has a Hide Header option which determines whether the 'Select all (#)' and 'Show selected' headers are displayed.

Thanks. The column reordering step was just one step of a larger ETL. Appreciate the feedback regarding DataSet Views.

Thank you. In this instance, the new column order didn't appear to get reflected in the output dataset, even after refreshing. We set the column order via the dataset schema, however. Appreciate your answer, and will use your suggestions in the future.