Hi,
Do you mean arranging Custom Attributes alphabetically on the Application page that belong to a particular Object/Sub-object/Custom Object? If yes, you can do this on the Admin side by going to that particular Object Views Layout (Create/Edit) and then select the Properties icon within the required Section. By default, all the Attributes are arranged in an alphabetical order within the Available column. You can select the Attributes that you would like to see on the Application page in an alphabetical order.
Suhail.