Import XML data with Adobe Reader

Hello,

I work in a dynamic pdf form with livecycle ES4 designer and I would use the xfa.host.importData () function to import XML data in my form.

The problem is that the button only works in Adobe Acrobat Pro, and when I use it in Adobe reader, he told me that the security settings prohibit access to the property or the method.

How can I activate the protection settings?

Thanks