In order to show the chart with the order date “Jan 2018, Feb 2018, …, Dec 2018” on X-axis of the chart , I have hidden column with the value 2018-01, 2018-02, …, 2018-12 along side with the column “Jan 2018, Feb 2018, …, Dec 2018”, it works well, however once clicked the chart for the drill down, both columns are showed as filters at the top of the drill dow, for example: column-1: 2018-01, column-2: Jan 2018", how can I hide the column-1 to keep showing on the drill down.

