When I create a form in LiveCycle ES4 how can I make the form disable buttons when it's opened in adobe reader. for example I want to disable the Email button in the menu bar of adobe reader.

(explanation) the form has 2 option, when i select either i want to see only field relative to that selectionExample.New user  (Radio button)this will give me field that are only applicable to a new userUser modification (radio Button)this will give me fields applicable to modify a user accountthis...