Table Schema
With the schema tab selected, your work area will look like this:
The upper section lists the columns within the selected table. From left to right, the column details are as follows:
To add a column to a table, click the button
The lower table lists the indexes present on the selected table. The first column contains the index name and the second lists the columns which are part of that index.
To add or remove indexes on a table, click the buttons