Adding Fields to a Web Part
Columns display the information that constitutes each item in a list or library. At the top of each column is the name of the column.  When you add an item to the list or library, you fill out a form in which each column is represented by a field. Each field is labeled with the name of the column. If you provide a description for the column, the description appears below the field.
  1. Click on the title bar to open the Web part (as shown at the right)
  2. In the Actions menu, click the Modify settings and columns link
  3. The Customize screen will display
  4. Scroll down to the Columns section:

  5. All of the columns currently included in the Web part will be listed, as shown above.
CHANGING AN EXISTING COLUMN
  1. To change the settings of a specific column, click on the name of the column (ie: Title, Begin, End, etc.)
  2. The Change Column screen will display
  3. The available settings will depend of the type of Web part that you are working with. 
    Note:  Some types of data cannot be converted when you change a column type. For example, if you change a column with multiple lines of text into a number column, the existing text data is lost.
  4. Make your changes and click OK.
ADDING A NEW COLUMN
  1. From the Columns list, click Add a new column
  2. The Add Column screen will display
  3. In the Column name field, type a name for your new field
  4. Select the type of information you will track in this field
    Note:  Click here for details about each available option
  5. Based on the type selected in Step 4, the Optional Settings for this Column section will change to reflect the appropriate options for the field type
  6. When finished configuring your new field, click OK
DELETING A COLUMN
  1. In the Columns section, click the name of the column you want to delete
  2. At the bottom of the page, click Delete
    Note:  There are certain built-in columns, such as Title, that you cannot delete.
  3. The following warning message will appear:
    This column will be removed and all the data stored in that column will be permanently deleted.  Are you sure you want to delete this column?
  4. Click OK to complete the deletion process