You can easily hide columns in the listing views (for example the product list or the sales order list).

To hide a column:

1. Navigate to the list you want to adjust.
2. Click the top row of the table and select the column you want to remove from the resulting list.
3. The column will now be hidden and there will no longer be a check mark next to the column name.

To show a column:

1. Navigate to the list you want to adjust.
2. Click the top row of the table and select the column you want to show in the resulting list.
3. The column will now be shown and there will now be a check mark next to the column name.