Valut Column - Cannot remove column

Hello. I added an additional column to the vault pane and now I can't seem to remove it. I tried to go to the column selector thinking I could double click on it again and it would disappear but it's no longer in the selector.

What do I need to do to remove it. I tried right-clicking on it but no select menu appears, etc.

Thanks,

Glen

p.s. I added a screenshot but don't know how to make the image inline.