2.
In the Object palette, click the Binding tab and select None from the Default Binding menu. Because the object will not capture or display data, any information associated with the object will not be written as output when the form data is saved.
Note:
When you disable binding from a subform, the subform will not be involved in any data-merging operations, but its objects (including any nested subforms) may still capture or display data.
See also 

To remove a binding