Missing column in the Toad database login window (4247696)

When I removed the "Alias" column from the grouping in my Database login window, it disappear from the window.  How can I get this column back?

Please follow the steps below to retrieve missing columns:

1.  In the Database Login window, locate a small icon in the upper left corner of the first columns area that you can click called "Click here to show / hide columns".
2.  Click that icon and you'll see a drop down list of all the columns that can be display.
3.  Check the column that you want to show up in the database login window.