To insert, delete, copy, move, rename, or clear a column in a table, place the cursor (pointer) somewhere in the table and right-click to select the appropriate selection.
If you choose to insert a column, you will be prompted to enter a name for a new column. New columns will automatically be added to the end of the table. You can click and drag the header of the column to move it to a new location.
Note: If you have chosen to partially load your data file (i.e., checked the "Only load the first ___ records" box when loading the file), some of these options will not be available.
To freeze columns drag the divider next to the row number to the right.