On the Access As form, this field displays the current Access As identifier, which is used in some forms to identify who created the metadata object.
This identifier also controls which metadata objects are available for editing.
Default and other possible values include:
When this field is present on other forms, you can modify or delete records and values on that form only if this field displays the same value as on the Access As form.
For more information, see "About the Access As Identifier" in the Guide to the Application Event System.