I think you'll need to provide more detailed information or context about what you are trying to accomplish. OEPE displays "Bind to a dynamic value" as a tool tip for buttons typically used to launch the Choose Binding dialog so the users can modify the properties of a JSF component within a page.
The following link is for a tutorial that illustrates how to build an ADF application using OEPE. In this tutorial you will find an example of creating a page, adding a JSF component and modifying its properties using the Bind to a dynamic value button which launches the dialog with defined binding elements.
Hope that helps,