The View, Browse, and Edit functions allow you to look at the contents of a dialog. While editing a dialog, you can change it by adding or deleting lines, typing over the existing source code, or copying lines from another dialog to the one being edited.
Also, ISPF provides online models that you can insert into the dialog. A model is an example of a service call, panel format, table format, or message that contains the proper syntax and all the available parameters for the programming language being used. Since these models are online, they can be called directly into the member being edited.
See z/OS V2R2 ISPF Edit and Edit Macros for more information.