Hello,
You can’t hide a column, but you can adjust a column size so one column has only 1 character width. You might want to clear the Adjust Separator Positions Automatically check box in the CSV page of the Customize dialog box if you have not done already.
I will think about adding move right/left a column command in the future, but you can drag and drop selected column(s) if the Cell Selection Mode is disabled.
Thanks,