All of the currently defined columns are listed in this dialog and
you can simultaneously edit the properties of all the columns you
select.
Note however, that if you choose a mixture of Calculated Columns and
Manual
Columns, these will be edited in separate batches.
Keep in mind the fact that Column names must be unique within a
DataSet. Therefore,
if you select to edit Column A, B and C where these all belong to the
same DataSet
then the Column name field will be disabled to preserve uniqueness.
On the other hand, if you select Column A and that column exists in
three different DataSets, then you can change that name and this change
will be propagated over all three DataSets.
The dialogs offer the same functionality for editing columns as does
the New
Manual Column or the New
Calculated Column as accessed from the Data
Menu.